Biology 12 Mendel's Experiments & Heredity MCQ

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Unit 3. Genetics

Chapter 12: Mendel's Experiments and Heredity MCQ Multiple Choices Questions Quiz Test Bank

12.1 Mendel's Experiments and the Laws of Probability

12.2 Characteristics and Traits

12.3 Laws of Inheritance

Quiz PDF eBook: 
Biology 12 Mendel's Experiments & Heredity MCQ
Download Biology 12 Quiz PDF eBook
12 Pages
2015
English US
Educational Materials



Sample Questions from the Biology 12 Mendel's Experiments & Heredity MCQ Quiz

Question: Imagine you are performing a cross involving seed color in garden pea plants. What F1 offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green.

Choices:

100 percent yellow-green seeds

100 percent yellow seeds

50 percent yellow, 50 percent green seeds

25 percent green, 75 percent yellow seeds

Question: Mendel performed hybridizations by transferring pollen from the _______ of the male plant to the female ova.

Choices:

anther

pistil

stigma

seed

Question: If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of?

Choices:

dominance

codominance

multiple alleles

incomplete dominance

Question: The forked line and probability methods make use of what probability rule?

Choices:

test cross

product rule

monohybrid rule

sum rule

Question: The observable traits expressed by an organism are described as its ________.

Choices:

phenotype

genotype

alleles

zygote

Question: The ABO blood groups in humans are expressed as the IA, IB, and i alleles. The IA allele encodes the A blood group antigen, IB encodes B, and i encodes O. Both A and B are dominant to O. If a heterozygous blood type A parent (IAi) and a heterozygous blood type B parent (IBi) mate, one quarter of their offspring will have AB blood type (IAIB) in which both antigens are expressed equally. Therefore, ABO blood groups are an example of:

Choices:

multiple alleles and incomplete dominance

codominance and incomplete dominance

incomplete dominance only

multiple alleles and codominance

Question: Which is one of the seven characteristics that Mendel observed in pea plants?

Choices:

flower size

seed texture

leaf shape

stem color

Question: A recessive trait will be observed in individuals that are ________ for that trait.

Choices:

heterozygous

homozygous or heterozygous

homozygous

diploid

Question: Assuming no gene linkage, in a dihybrid cross of AABB x aabb with AaBb F1 heterozygotes, what is the ratio of the F1 gametes (AB, aB, Ab, ab) that will give rise to the F2 offspring?

Choices:

1:1:1:1

1:3:3:1

1:2:2:1

4:3:2:1

Question: In a mating between two individuals that are heterozygous for a recessive lethal allele that is expressed in utero, what genotypic ratio (homozygous dominant:heterozygous:homozygous recessive) would you expect to observe in the offspring?

Choices:

1:2:1

3:1:1

1:2:0

0:2:1

Question: Consider a cross to investigate the pea pod texture trait, involving constricted or inflated pods. Mendel found that the traits behave according to a dominant/recessive pattern in which inflated pods were dominant. If you performed this cross and obtained 650 inflatedpod plants in the F2 generation, approximately how many constricted-pod plants would you expect to have?

Choices:

600

165

217

468

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