Biology 12 Mendel's Experiments & Heredity MCQ

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This NASA image is a composite of several satellite-based views of Earth. To make the whole-Earth image, NASA scientists combine observations of different parts of the planet. (credit: NASA/GSFC/NOAA/USGS)

Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.

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

Choices:

anther

pistil

stigma

seed

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

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

Choices:

heterozygous

homozygous or heterozygous

homozygous

diploid

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

Choices:

test cross

product rule

monohybrid rule

sum rule

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

Choices:

phenotype

genotype

alleles

zygote

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

Choices:

flower size

seed texture

leaf shape

stem color

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

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Source:  OpenStax College. Download for free at http://cnx.org/content/col12448/latest/
Jordon Humphreys
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