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BIOL 103 Module 35 Heredity

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Heredity Quiz

Question 1

Heredity

A homozygous dominant germ cell undergoes meiosis. The gametes will _________________________.

only have the dominant allele
have both the dominant or the recessive allele
only have the recessive allele
either have the dominant or the recessive allele

Question 2

The next two questions are based on the following information.

Part 1 of 2: In beans yellow (Y) is dominant to green (y) and smooth (S) is dominant to wrinkled (s). What are the possible genotypes for the offspring of the following cross: YySS and YYSs.

YYSS, YySS, YYSs, YySs
YS, yS, YS, yS
Yy, SS, YY, Ss
YYSS, YYss, yySS, yyss

Question 3

Part 2 of 2: In beans with yellow (Y) dominant to green (y) and smooth (S) dominant to wrinkled (s): What are the phenotypes for the offspring in the example in the previous question?

50% yellow smooth and 50% green smooth
100% green wrinkled
50% yellow smooth and 50% yellow wrinkled
100% yellow smooth

Question 4

In peas, purple is dominant over white for flower color. Suppose a purple flower is crossed with a white flower. Some of the offspring are purple, and others are white. What is the genotype of the original purple flower?

PP
Pp
pp
either PP or Pp

Question 5

Peter gets his blood tested and finds out that he is B+. This test identified a

Phenotype
Chromosome
DNA
Genotype

Question 6

Linked genes: _______________________________.

have related phenotypes
are found on the same chromosome
are alleles of each other
sort independently of each other

Question 7

The sister chromatids separate during which stage of meiosis?

Anaphase I
Anaphase II
Prophase I
Prophase II

Question 8

Alleles are different versions of a _______________.

genotype
chromosome
gene
phenotype

Question 9

An individual that expresses the dominant trait of a dominant/recessive gene

must be homozygous
must be heterozygous
can be either homozygous or heterozygous

Question 10

Which relationship is correct?

Protein is to phenotype as genotype is to DNA.
Protein is to genotype as DNA is to phenotype.
Phenotype is to protein as DNA is to genotype.
Protein is to phenotype as DNA is to genotype.

Question 11

The next three questions are based on the following information.

In humans, the ability to roll the tongue (T) is dominant over the inability to do so (t). Suppose Mike, who can roll his tongue, and Jeannie, who cannot roll her tongue, have a child, Benjamin.

Part 1 of 3: If Mike’s mother was able to roll her tongue but his father was not able to roll his, then what is the probability that Benjamin will be able to roll his tongue?

50%
0%
100%
75%

Question 12

Part 2 of 3: What is the probability that Benjamin will be homozygous recessive?

100%
75%
50%
0%

Question 13

Part 3 of 3: What is the probability that Benjamin will be homozygous dominant?

50%
0%
75%
100%

Heredity Quiz

Question 1

Which of the following is true of a diploid organism?

It has two of each gene.
It has two of each chromosome.
It has two alleles of each gene.
All of the above.
None of the above.

Question 2

Homozygous is a term that can describe a(n) _____________.

allele
genotype
phenotype
heterozygous

Question 3

List all possible gametes that can be produced from a cell that has the following genotype: AaBBDd.

ABD, abd
ABD, ABd, AbD, Abd, aBD, aBd, abD, abd
A, a, B, D, d
ABD, ABd, aBD, aBd

Question 4

Homologous pairs of chromosomes line up at the center of the cell in during which stage of meiosis?

Metaphase I
Metaphase II
Telophase I
Telophase II

Question 5

Two heterozygous individuals have mated. How many different genotypes can be present in the offspring?

Question 6

How many different gametes are produced by a cell with the genotype AABb?

Question 7

How many copies of each gene does a diploid organism have?

Question 8

Which of these discusses genotypes rather than phenotypes?

The offspring of these flowers can be either red or white.
The male mouse is homozygous dominant.
Lactose intolerance can be due to a missing protein (the enzyme that digests lactose).
All of these discuss genotypes

Question 9

Crossing over occurs: _______________.