Chapter 14, Mendelian Genetics Video Solutions, Must Know High School Biology

Problem 1

\begin{aligned}
&\text { Match the following term with the correct definition: }\\
&\begin{array}{|l|l|}
\hline \text { a. Allele } & \text { 1. Two matching alleles } \\
\hline \text { b. Dominant } & \text { 2. This allele is seen in a heterozygous } \\
\hline \text { c. Genotype } & \text { combination } \\
\hline \text { d. Heterozygous } & \text { 4. What an organism looks like } \\
\hline \text { e. Homozygous } & \text { 5. In order to see this type of trait, it must be } \\
\hline \text { f. Phenotype } & \text { 6. An organism's genetic makeup } \\
\hline \text { g. Recessive } & \text { 7. One of each allele } \\
\hline
\end{array}
\end{aligned}

Joanna Quigley

Numerade Educator

07:25

Problem 2

Fruit fly (Drosophila melanogaster) eyes are normally red, but there is a recessive allele that makes them appear dark (ebony). If a heterozygous red-eyed fly is crossed with a fly with ebony eyes, what percentage of offspring will have the recessive phenotype?

Rashmi Sinha

Numerade Educator

06:27

Problem 3

In cats, brown fur (B) is dominant to white fur (b), and short fur (S) is dominant to long fur (s). What are the odds that a cross between a male cat heterozygous for both traits and a white, short-haired female (who is heterozygous for fur length) will produce a kitten with white, long fur?

Bryan Valdivia

Numerade Educator

01:15

Problem 4

A man with normal color vision marries a woman who also has normal color vision. Her father was color-blind. What are the chances that their child will be color-blind?

Zachary Papazian

Numerade Educator

01:12

Problem 5

A plant with purple flowers crosses with a plant with white flowers. All the offspring produce purple flowers. Based on this description, which flower color allele (white or purple) is dominant and which is recessive?

Jonathan Temple

Numerade Educator

01:54

Problem 6

True or False: When a homozygous dominant trait is crossed with a homozygous recessive trait, the phenotypic ratio in the offspring will always be $100 \%$ recessive phenotype.

Madeline Buddendorf

Numerade Educator

05:32

Problem 7

In chickens, brown feathers (B) are dominant to white feathers (b) and large combs (L) are dominant to small combs (l). If a white rooster that is heterozygous for large combs mates with a hen that is heterozygous for both traits, what are the odds of producing a white chicken with a large comb?

John Barone

Numerade Educator

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Problem 8

If a color-blind man has a baby with a woman who is homozygous for normal vision, what are their chances of having a daughter who is a carrier for color blindness?

Kaela Piechowicz

Numerade Educator