Animal Growth And Heredity Quiz

Explanation
The statement is true because cells in the adult body continue to divide even after the growth phase is complete. This division is necessary for the replacement of dead cells and to repair any damage or injuries to the body systems. This ongoing cell division ensures that the body is able to maintain its structure and function properly.

Explanation
Mitosis is the correct answer because it refers to the process of cell division. During mitosis, a single cell divides into two identical daughter cells, each containing the same number of chromosomes as the parent cell. This process is essential for growth, repair, and reproduction in organisms. Breeding, budding, and metamorphosis are not processes of cell division, making them incorrect options.

Explanation
In sexual reproduction, two parents are required as they contribute genetic material to create offspring with unique traits. The reproductive system is also necessary to facilitate the union of gametes from both parents and support the development of the zygote. Chromosomes are essential as they carry the genetic information that is passed down from the parents to the offspring. The zygote is formed when the sperm and egg fuse, initiating the development of a new individual.

Explanation
Genes are segments of DNA that contain the instructions for building and maintaining an organism. These genes are located on chromosomes, which are structures within the cell that carry genetic information. Therefore, it is true that genes found on chromosomes contain the DNA codes for the inherited traits.

Explanation
A strong trait is often referred to as a dominant trait. This means that the trait is more likely to be expressed in an individual's phenotype, even if only one copy of the gene responsible for the trait is present. Dominant traits tend to overpower recessive traits, which require two copies of the gene to be expressed. Therefore, the correct answer is "Dominant trait."

Explanation
Mitosis is a type of cell division that produces two identical daughter cells, which are used for growth, repair, and maintenance of the body. Therefore, the first blank should be filled with "body" as mitosis produces body cells. On the other hand, meiosis is a type of cell division that produces four non-identical daughter cells, each with half the number of chromosomes as the parent cell. Meiosis is involved in the production of gametes (reproductive cells), such as sperm and eggs. Hence, the second blank should be filled with "reproductive" as meiosis produces reproductive cells.

Explanation
Chromosomes are threadlike strands of DNA that are found inside the nucleus of a cell. They contain the genetic information that is passed down from one generation to another. Chromosomes play a crucial role in the process of cell division and determining the traits and characteristics of an organism. They are made up of genes, which are segments of DNA that code for specific proteins. Therefore, chromosomes are the correct answer to the given question.

Explanation
The statement is false because most mammals do not lay eggs. Mammals are characterized by giving birth to live young, not by laying eggs. The majority of mammals, including humans, give birth to live offspring through internal fertilization. Only a few species of mammals, such as monotremes (platypus and echidna), lay eggs. Therefore, the correct answer is false.

Explanation
In incomplete metamorphosis, the organism goes through three stages: eggs, nymph, and adult. This means that the organism starts as an egg, then hatches into a nymph, and finally develops into an adult. Therefore, the correct answer is "eggs, nymph, adult."