Mendelian Genetics

Created March 2020 by Anonymous, Offline version here
Video by Paul Anderson, also on his website Bozeman Science.

1
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When Mendel crossed a purple flower with a white flower, it resulted in an F2 generation of all purple flowers. What is the best explanation for why Mendel witnessed a white flower in the F3 generation?
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1
Which of the following best describes Mendel’s Law of Segregation?
3
1
Which of the following does NOT follow Mendel’s Law of Independent Assortment?
4
1
What are the odds a parent with a genotype ‘Tt’ will pass on the dominant allele to their offspring?
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1
Round (R) is dominant to wrinkled (r) and yellow (Y) is dominant to green (y). Which genotype is paired with the correct phenotype?
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1
Round (R) is dominant to wrinkled (r) and yellow (Y) is dominant to green (y). Which of the following best describes the phenotype for the genotype ‘YYRr?’
7
1
Round (R) is dominant to wrinkled (r). What is the probability of RR x Rr producing wrinkled seeds?
8
1
Round (R) is dominant to wrinkled (r) and yellow (Y) is dominant to green (y). What is the probability of RrYy x rrYy producing round, green seeds?
9
1
Huntington’s disease attacks what part of the body?
10
1
Huntington’s disease is a dominant disease. Which individual is homozygous recessive?
11
1
Huntington’s disease is a dominant disease. What are the odds a homozygous dominant parent will pass on the disease?
12
1
Attached earlobe is recessive (e) while Huntington’s disease is dominant (H). Which of the following is the genotype of a hybrid for both of these traits?
13
1
Which of the following best explains why Huntingon’s disease raises ethical issues?
14
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Attached earlobe is recessive (e) while Huntington’s disease is dominant (H). Two individuals are homozygous dominant for free earlobes and are hybrids for Huntington’s disease. What is the probability they will produce a wild type offspring for the disease?
15
1
Free earlobes are dominant and attached earlobes are recessive. Huntington’s disease is a dominant disease. An individual is homozygous recessive for attached earlobes and they do not have Huntington’s disease. They marry an individual who is a hybrid for Huntington’s disease and for free earlobes. What is the probability they will produce an offspring with Huntington’s disease with attached earlobes?