1.
Who was Gregor Mendel?
Correct Answer
B. An Austrian Monk
Explanation
Gregor Mendel was an Austrian Monk who is widely known as the father of modern genetics. He conducted groundbreaking experiments with pea plants in the mid-19th century, discovering the fundamental principles of inheritance. Mendel's work laid the foundation for the field of genetics and revolutionized our understanding of how traits are passed from one generation to the next. His experiments and observations on pea plants led to the formulation of Mendel's Laws of Inheritance, which are still taught and studied today.
2.
What was Gregor Mendel nicknamed as a result of his scientific research?
Correct Answer
D. The Father of Genetics
Explanation
Gregor Mendel is commonly referred to as "The Father of Genetics" because of his groundbreaking work in the field. Mendel conducted extensive experiments with pea plants and discovered the principles of inheritance, including dominant and recessive traits. His work laid the foundation for modern genetics and revolutionized our understanding of how traits are passed down from generation to generation. Mendel's discoveries paved the way for further advancements in the field of genetics and earned him the title of "The Father of Genetics."
3.
On which type of plant did Gregor Mendel conduct his scientific experiments?
Correct Answer
A. Pea Plants
Explanation
Gregor Mendel conducted his scientific experiments on pea plants. Mendel is known as the father of modern genetics, and his experiments with pea plants laid the foundation for our understanding of inheritance. Mendel carefully observed and documented the traits of the pea plants, such as flower color, seed shape, and plant height, and conducted controlled crosses to study how these traits were inherited. His work with pea plants allowed him to formulate the laws of inheritance and establish the principles of genetics.
4.
How many "Laws of Genetics" did Gregor Mendel propose?
Correct Answer
C. 3
Explanation
Gregor Mendel proposed three "Laws of Genetics." These laws, also known as Mendel's Laws, are the Law of Segregation, the Law of Independent Assortment, and the Law of Dominance. Mendel's experiments with pea plants led to these laws, which laid the foundation for the field of genetics. The Law of Segregation states that pairs of alleles separate during the formation of gametes. The Law of Independent Assortment states that different pairs of alleles segregate independently of each other during gamete formation. The Law of Dominance states that one allele can mask the expression of another allele.
5.
Gregor Mendel identified 2 different alleles (versions) of genetic traits. These alleles were named the ___________ and the ____________ alleles based on how strongly and often they express themselves in individuals.
Correct Answer
A. Dominant & recessive
Explanation
Gregor Mendel identified two different alleles of genetic traits, which he named the dominant and recessive alleles. These terms are used to describe how strongly and often these alleles express themselves in individuals. The dominant allele is the one that is expressed more strongly and frequently, while the recessive allele is expressed less strongly and less frequently.
6.
In order for an organism to show the recessive phenotype (physical trait), that individual must have ____ copies of the recessive allele.
Correct Answer
B. 2
Explanation
In order for an organism to show the recessive phenotype, that individual must have two copies of the recessive allele. This is because recessive alleles are only expressed when there are no dominant alleles present. If an organism has one dominant allele and one recessive allele, the dominant allele will mask the expression of the recessive allele, resulting in the dominant phenotype. Therefore, it is only when an organism has two recessive alleles that the recessive phenotype will be observed.
7.
What are the names of Mendel's 3 Laws?
Correct Answer(s)
A. Law of Dominance
E. Law of Independent Assortment
F. Law of Segregation
Explanation
Mendel's three laws are the Law of Dominance, which states that one allele in a pair may mask the expression of the other allele, the Law of Independent Assortment, which states that the inheritance of one trait does not affect the inheritance of another trait, and the Law of Segregation, which states that during gamete formation, the alleles for each gene segregate from each other. These laws were formulated by Gregor Mendel based on his experiments with pea plants and laid the foundation for the modern understanding of genetics.
8.
If a person is considered to be homozygous for a particular trait, this means that they have...
Correct Answer
C. 2 of the same alleles
Explanation
If a person is considered to be homozygous for a particular trait, it means that they have 2 of the same alleles. In other words, both alleles for that trait are identical. This can either be 2 dominant alleles or 2 recessive alleles. Having 2 of the same alleles means that there is no variation in the genetic information for that particular trait.
9.
If a person is considered to be heterozygous for a particular trait, that person has...
Correct Answer
A. 1 dominant & 1 recessive allele
Explanation
If a person is considered to be heterozygous for a particular trait, it means that they have two different alleles for that trait, one dominant and one recessive. This means that they inherited one allele from each of their parents, with one being dominant and the other recessive. The dominant allele will be expressed in the phenotype, while the recessive allele will be masked.