Meiosis, Reproduction, And Development Test

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  • 1/30 Questions

    Which of the following best describes the cells that result from the process of meiosis in mammals?

    • They are diploid.
    • They can be used to repair injuries.
    • They are genetically different from the parent cell.
    • They are genetically identical to all the other cells in the body.
    • They are identical to each other.
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Plant Reproduction Quizzes & Trivia
About This Quiz

This online test will assess your knowledge of meiosis, as well as animal and plant reproduction and development.

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  • 2. 

    This hormone stimulates ovulation.

    • Testosterone

    • Progesterone

    • Gonadotropin-releasing hormone (GnRH)

    • Luteinizing hormone (LH)

    • Follicle-stimulating hormone (FSH)

    Correct Answer
    A. Luteinizing hormone (LH)
    Explanation
    Luteinizing hormone (LH) is the correct answer because it is responsible for stimulating ovulation. LH is produced by the pituitary gland and plays a crucial role in the menstrual cycle. It triggers the release of an egg from the ovary, which is necessary for fertilization to occur. LH levels surge right before ovulation, indicating that an egg is about to be released. Therefore, LH is directly involved in the process of ovulation.

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  • 3. 

    This hormone promotes the development of the endometrium.

    • Testosterone

    • Progesterone

    • Gonadotropin-releasing hormone (GnRH)

    • Luteinizing hormone (LH)

    • Follicle-stimulating hormone (FSH)

    Correct Answer
    A. Progesterone
    Explanation
    Progesterone is the correct answer because it is a hormone that plays a crucial role in the menstrual cycle and pregnancy. During the menstrual cycle, progesterone is responsible for thickening the lining of the uterus, known as the endometrium, in preparation for the implantation of a fertilized egg. If fertilization occurs, progesterone continues to support the development of the endometrium and helps maintain a healthy pregnancy. Therefore, progesterone promotes the development of the endometrium.

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  • 4. 

    This hormone stimulates the testes to produce androgens, such as testosterone.

    • Progesterone

    • Gonadotropin-releasing hormone (GnRH)

    • Luteinizing hormone (LH)

    • Follicle-stimulating hormone (FSH)

    • Estrogen

    Correct Answer
    A. Luteinizing hormone (LH)
    Explanation
    Luteinizing hormone (LH) is the correct answer because it stimulates the testes to produce androgens, such as testosterone. LH is produced by the pituitary gland and plays a crucial role in the regulation of the reproductive system. It triggers the release of testosterone, which is responsible for the development and maintenance of male reproductive tissues and secondary sexual characteristics. LH also plays a role in the regulation of the menstrual cycle in females.

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  • 5. 

    The function of the acrosome in sperm is to

    • Provide ATP for flagellar movements.

    • Control DNA replication in the sperm.

    • Store enzymes used for penetrating the egg during fertilization.

    • Enclose the genetic material.

    • Provide energy molecules for glycolytic reactions.

    Correct Answer
    A. Store enzymes used for penetrating the egg during fertilization.
    Explanation
    The acrosome in sperm is a specialized structure located at the head of the sperm. It contains a variety of enzymes that are essential for the process of fertilization. These enzymes help the sperm penetrate the protective layers of the egg, allowing it to fuse with the egg and fertilize it. Therefore, the correct answer is that the acrosome stores enzymes used for penetrating the egg during fertilization.

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  • 6. 

    In humans, gastrulation begins at the

    • Primitive streak.

    • Blastodisc.

    • Blastocyst.

    • Yolk.

    • Trophoblast.

    Correct Answer
    A. Primitive streak.
    Explanation
    Gastrulation is a critical process during embryonic development where the three primary germ layers are formed. The primitive streak is a structure that appears on the surface of the developing embryo and serves as a signaling center for the migration and differentiation of cells. It is responsible for the establishment of the body plan and the formation of important structures such as the notochord and neural tube. Therefore, the primitive streak marks the beginning of gastrulation in humans.

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  • 7. 

    In embryonic development, a solid ball of around 16-32 cells is called a(n)

    • Blastula (blastocyst).

    • Gastrula.

    • Morula.

    • Neural tube.

    • Notochord.

    Correct Answer
    A. Morula.
    Explanation
    In embryonic development, a solid ball of around 16-32 cells is called a morula. This stage occurs after fertilization, when the zygote undergoes multiple rounds of cell division. The morula is composed of totipotent cells, meaning they have the potential to develop into any type of cell in the body. Eventually, the morula will undergo further development and differentiation to form a blastula, which is a hollow ball of cells. Therefore, the correct answer is morula.

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  • 8. 

    In embryonic development, a sphere of cells with a hollow center is a(n)

    • Blastula (blastocyst).

    • Gastrula.

    • Morula.

    • Neural tube.

    • Notochord.

    Correct Answer
    A. Blastula (blastocyst).
    Explanation
    In embryonic development, a sphere of cells with a hollow center is called a blastula (blastocyst). This structure forms after the fertilized egg undergoes several rounds of cell division. The blastula is characterized by a single layer of cells surrounding a fluid-filled cavity called the blastocoel. It is an early stage in embryogenesis and plays a crucial role in the formation of different tissue layers and organs during gastrulation. The other options mentioned, gastrula, morula, neural tube, and notochord, are also important developmental stages or structures but do not specifically refer to a sphere of cells with a hollow center.

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  • 9. 

    The stage of embryonic development in which there are three layers of cells is the

    • Blastula (blastocyst).

    • Gastrula.

    • Morula.

    • Neural tube.

    • Notochord.

    Correct Answer
    A. Gastrula.
    Explanation
    The correct answer is gastrula. During the gastrula stage of embryonic development, the blastula undergoes a process called gastrulation, where the cells rearrange and differentiate into three germ layers: ectoderm, mesoderm, and endoderm. These three layers give rise to different tissues and organs in the developing embryo. The gastrula stage is a critical milestone in embryonic development as it marks the beginning of organ formation.

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  • 10. 

    Genetically-unique, haploid eggs develop into haploid individuals in

    • Budding.

    • Internal fertilization.

    • External fertilization.

    • Parthenogenesis.

    • Segregation.

    Correct Answer
    A. Parthenogenesis.
    Explanation
    Parthenogenesis is the process by which genetically-unique, haploid eggs develop into haploid individuals without fertilization. In this process, the eggs undergo development and growth without the need for sperm. This is different from internal and external fertilization, where fertilization of the egg by sperm is required. Segregation refers to the separation of different alleles during the formation of gametes and is not related to the development of haploid individuals.

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  • 11. 

    Which of the following structures allows for increased seed dispersal by animals?

    • Flower

    • Fruit

    • Antheridium

    • Archegonium

    • Pollen grain

    Correct Answer
    A. Fruit
    Explanation
    Fruits are structures that allow for increased seed dispersal by animals. They are often attractive to animals due to their taste and smell, which encourages them to eat the fruit. When animals consume the fruit, they also ingest the seeds. These seeds are then dispersed through the animal's digestive system and are deposited in new locations through their waste. This method of seed dispersal increases the chances of the seeds finding suitable conditions for germination and growth, thus increasing the plant's chances of survival and reproduction.

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  • 12. 

    Which of the following structures represents male gametophyte tissue?

    • Flower

    • Fruit

    • Antheridium

    • Archegonium

    • Pollen grain

    Correct Answer
    A. Antheridium
    Explanation
    An antheridium is a structure in plants that produces and contains male gametes, also known as sperm cells. It is a part of the male gametophyte tissue, which is responsible for the production of male reproductive cells. The other options listed, such as flower, fruit, archegonium, and pollen grain, are not specific to male gametophyte tissue and do not directly produce male gametes. Therefore, the correct answer is antheridium.

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  • 13. 

    Which of the following structures is produced from megaspores in heterosporous plants?

    • Flower

    • Fruit

    • Antheridium

    • Archegonium

    • Pollen grain

    Correct Answer
    A. Archegonium
    Explanation
    Archegonium is the correct answer because it is a structure that is produced from megaspores in heterosporous plants. The archegonium is a female reproductive structure that contains the egg and is responsible for fertilization in these plants. It is typically found in the gametophyte generation of the plant life cycle and plays a crucial role in sexual reproduction.

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  • 14. 

    The hormone testosterone            I.  maintains the male reproductive organs.           II.  is responsible for secondary sex characteristics in males.          III.  regulates male sex drive.

    • I only

    • II only

    • I and II only

    • I and III only

    • I, II, and III

    Correct Answer
    A. I, II, and III
    Explanation
    Testosterone is a hormone that plays multiple roles in the male body. It maintains the male reproductive organs, ensuring their proper functioning. It is also responsible for the development of secondary sex characteristics in males, such as facial hair, deep voice, and muscle growth. Additionally, testosterone regulates the male sex drive, influencing sexual desire and libido. Therefore, all three statements are correct, indicating that the correct answer is I, II, and III.

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  • 15. 

    During the process of development, it is essential for some cells to systematically shut down and commit cell suicide.  This cell death allows for the removal of cells that are unnecessary to the organism as it grows.  This programmed cell death is called

    • Mutagenesis.

    • Apomyxis.

    • Parthenogenesis.

    • Apoptosis.

    • Conjugation.

    Correct Answer
    A. Apoptosis.
    Explanation
    During development, cells that are no longer needed or potentially harmful to the organism undergo a process called apoptosis. This programmed cell death is essential for removing unnecessary or damaged cells, ensuring proper growth and development. Mutagenesis refers to the process of introducing genetic mutations, apomyxis is a type of asexual reproduction, parthenogenesis is a form of reproduction without fertilization, and conjugation is the transfer of genetic material between bacteria.

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  • 16. 

    In the alternating life cycle found in plants, the two multicellular stages are

    • Haploid sporophyte and diploid gametophyte

    • Haploid gametophyte and diploid sporophyte

    • Haploid sporophyte and haploid gametophyte

    • Diploid sporophyte and diploid gametophyte

    • Male gamete and female gametophyte

    Correct Answer
    A. Haploid gametophyte and diploid sporophyte
    Explanation
    In the alternating life cycle found in plants, the two multicellular stages are haploid gametophyte and diploid sporophyte. This means that the plant alternates between a multicellular stage where it produces haploid gametes (gametophyte) and a multicellular stage where it produces diploid spores (sporophyte). This cycle allows for sexual reproduction and genetic variation in plants.

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  • 17. 

    On a flower, the site where pollen grains are produced is called the

    • Anther.

    • Filament.

    • Stigma.

    • Style.

    • Sepal.

    Correct Answer
    A. Anther.
    Explanation
    The anther is the part of a flower where pollen grains are produced. It is located at the top of the filament, which is a long, slender stalk that supports the anther. The stigma and style are part of the female reproductive organs of a flower and are involved in pollen reception and fertilization. The sepal is the outermost part of a flower that protects the developing bud. Therefore, the correct answer is anther.

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  • 18. 

    On a flower, the site where pollen grains attach during fertilization is the

    • Anther.

    • Filament.

    • Stigma.

    • Style.

    • Sepal.

    Correct Answer
    A. Stigma.
    Explanation
    The stigma is the part of a flower where pollen grains attach during fertilization. It is located at the top of the pistil, which is the female reproductive organ of the flower. The stigma is sticky or has specialized structures that help in capturing and holding the pollen grains. Once attached, the pollen grains can then germinate and grow down through the style, eventually reaching the ovary to fertilize the ovules and initiate seed formation.

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  • 19. 

    On a flower, the pollen tube extends the length of this structure to reach the ovule.

    • Anther

    • Filament

    • Stigma

    • Style

    • Sepal

    Correct Answer
    A. Style
    Explanation
    The style is the correct answer because it is the structure in a flower that connects the stigma to the ovary. The pollen tube grows through the style to reach the ovule, where fertilization takes place. The anther is the structure where pollen is produced, the filament is the stalk that holds the anther, the stigma is the sticky surface where pollen is deposited, and the sepal is the leaf-like structure that protects the flower bud. None of these structures are directly involved in the extension of the pollen tube to reach the ovule.

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  • 20. 

    On a flower, this structure protects the developing floral parts while in bud state.

    • Anther

    • Filament

    • Stigma

    • Style

    • Sepal

    Correct Answer
    A. Sepal
    Explanation
    The sepal is a structure that protects the developing floral parts while in the bud state. It is usually green and located at the base of the flower. Sepals are often leaf-like in appearance and serve to enclose and protect the developing petals, stamens, and pistil within the bud. Once the flower opens, the sepals may remain attached or fall off, depending on the plant species.

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  • 21. 

    On a flower, the location of male gametophyte tissue is called the

    • Anther.

    • Filament.

    • Stigma.

    • Style.

    • Sepal.

    Correct Answer
    A. Anther.
    Explanation
    The male gametophyte tissue in a flower is located in the anther. The anther is part of the stamen, which is the male reproductive organ of the flower. It is responsible for producing and releasing pollen, which contains the male gametes. The anther is typically located at the top of the filament, which is the stalk-like structure that supports the anther. The stigma, style, and sepal are all different parts of the flower, but they are not directly involved in the production of male gametophyte tissue.

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  • 22. 

    In animals, all of the following are associated with embryonic development EXCEPT

    • Gastrulation.

    • Cleavage.

    • Depolarization.

    • Organogenesis.

    • Cell migration.

    Correct Answer
    A. Depolarization.
    Explanation
    Embryonic development in animals involves various processes such as gastrulation, cleavage, organogenesis, and cell migration. Gastrulation is the process by which the three germ layers are formed, cleavage refers to the rapid cell division that occurs after fertilization, organogenesis is the formation of organs and organ systems, and cell migration involves the movement of cells to their designated locations. However, depolarization is not directly associated with embryonic development. Depolarization typically refers to a change in the electrical charge across a cell membrane, which is not a specific process involved in embryonic development.

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  • 23. 

    The succession of rapid cell division that follows fertilization is called

    • Gastrulation.

    • Cleavage.

    • Morulation.

    • Involution.

    • Polarization.

    Correct Answer
    A. Cleavage.
    Explanation
    Cleavage refers to the series of rapid cell divisions that occur after fertilization. During this process, the fertilized egg divides into multiple smaller cells called blastomeres. Cleavage is essential for the formation of a multicellular organism as it increases the number of cells and reduces their size. This division allows for the distribution of cytoplasmic materials and genetic information to each new cell. Gastrulation, morulation, involution, and polarization are different developmental processes that occur after cleavage and are not directly related to the rapid cell division that follows fertilization.

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  • 24. 

    This structure if usually the site of fertlization in humans:

    • Cervix

    • Uterus

    • Oviduct (Fallopian tube)

    • Ovary

    • Endometrium

    Correct Answer
    A. Oviduct (Fallopian tube)
    Explanation
    The oviduct, also known as the Fallopian tube, is the correct answer because it is the site of fertilization in humans. After an egg is released from the ovary, it travels through the oviduct where it can be fertilized by sperm if present. The fertilized egg then continues its journey down the oviduct towards the uterus for implantation. The cervix is the lower part of the uterus, the uterus is where the fertilized egg implants and develops into a fetus, the ovary is responsible for producing eggs, and the endometrium is the lining of the uterus that thickens and sheds during the menstrual cycle.

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  • 25. 

    Oogenesis in humans begins

    • During embryonic development.

    • At birth.

    • At puberty.

    • Monthly during the menstrual cycle.

    • At fertilization.

    Correct Answer
    A. During embryonic development.
    Explanation
    Oogenesis in humans begins during embryonic development because it is the process by which female gametes, or eggs, are formed. The development of eggs starts in the ovaries of a female fetus while she is still in her mother's womb. This process involves the formation and maturation of primary oocytes, which later develop into mature eggs. At birth, a female already has all the primary oocytes she will ever have, and they remain in a dormant state until puberty. During puberty, a small number of these oocytes are activated each month and undergo further development, leading to ovulation and the potential for fertilization.

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  • 26. 

    Among amniotes, all of the following are extraembryonic membranes EXCEPT the

    • Allantois.

    • Amnion.

    • Chorion.

    • Embryonic disc.

    • Yolk sac.

    Correct Answer
    A. Embryonic disc.
    Explanation
    The question asks for the extraembryonic membranes among amniotes, excluding one option. The amnion, chorion, allantois, and yolk sac are all extraembryonic membranes, meaning they develop outside the embryo and play important roles in supporting and protecting the developing embryo. The embryonic disc, however, is not an extraembryonic membrane. It is the structure that gives rise to the embryo itself, and is not considered a separate membrane.

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  • 27. 

    Flowering plants are capable of fertilization without water because

    • Pollination and fertilization take place in the soil.

    • Pollen tubes deliver sperm to the eggs.

    • Eggs develop without sperm by parthenogenesis.

    • Eggs can be dispersed by wind.

    • Sperm have lots of cytoplasm.

    Correct Answer
    A. Pollen tubes deliver sperm to the eggs.
    Explanation
    Flowering plants are capable of fertilization without water because pollen tubes deliver sperm to the eggs. This means that the male gametes (sperm) are able to reach the female gametes (eggs) without the need for water as a medium for transportation. The pollen tubes act as a conduit for the sperm to travel from the stigma to the ovary, where fertilization takes place. This mechanism allows flowering plants to reproduce efficiently even in dry environments where water may be scarce.

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  • 28. 

    The fruit produced by angiosperms is an adaptation that most often

    • Nourishes the seeds within the fruit.

    • Aids in seed dispersal.

    • Attracts pollinators.

    • Prevents seed germination until favorable conditions occur.

    • Provides an energy source for the plant egg cell prior to fertilization.

    Correct Answer
    A. Aids in seed dispersal.
    Explanation
    The fruit produced by angiosperms aids in seed dispersal. This means that the fruit helps in spreading the seeds away from the parent plant, increasing the chances of survival and reducing competition for resources. Various mechanisms are involved in seed dispersal, such as wind, water, animals, or even explosive mechanisms in some plants. By aiding in seed dispersal, angiosperms ensure the spread and colonization of their offspring in new areas, increasing their chances of survival and reproductive success.

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  • 29. 

    Double fertilization in an ovule of a flowering plant results in which of the following?

    • 2 embryos

    • 2 seeds in a fruit

    • 1 embryo and 1 endosperm

    • 2 fruits joined together

    • 1 endosperm and 1 cotyledon

    Correct Answer
    A. 1 embryo and 1 endosperm
    Explanation
    Double fertilization in an ovule of a flowering plant results in the formation of one embryo and one endosperm. During double fertilization, one sperm fertilizes the egg to form the embryo, while the other sperm fuses with the polar nuclei to form the endosperm. The endosperm provides nutrients to the developing embryo and eventually becomes part of the seed. This process ensures that the embryo has a sufficient supply of nutrients for its growth and development.

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  • 30. 

    All of the following correctly describe what happens to the embryonic layers of a vertebrate EXCEPT

    • The neural tube and epidermis develop from ectoderm.

    • The linings of the digestive organs and lungs develop from endoderm.

    • The notochord and kidneys develop from endoderm.

    • The skeletal muscles and heart develop from mesoderm.

    • The reproductive organs and blood vessels develop from mesoderm.

    Correct Answer
    A. The notochord and kidneys develop from endoderm.
    Explanation
    The notochord and kidneys develop from mesoderm, not endoderm. The notochord is a flexible rod-like structure that provides support to the developing embryo and eventually becomes part of the vertebral column. The kidneys, on the other hand, are excretory organs that filter waste products from the blood. Both of these structures develop from the mesoderm, one of the three primary germ layers in vertebrate embryos.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 20, 2010
    Quiz Created by
    Staylor98

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