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Genetics

Last updated about 3 years ago
15 questions
1

Brown eyes are dominant to blue eyes. Both of Donna's parents have brown eyes, but Donna has blue eyes. What is the BEST explanation for why Donna has blue eyes?

1

The type of inheritance where the dominant trait does NOT fully over power the recessive trait in a heterozygous genotype. The heterozygous trait is the blending of the two traits.

1

What is the type of inheritance with no recessive alleles? Hint:both alleles are dominat

1

Mike and his three brothers all have brown hair. Mike's father has brown hair, too. Mike's mother, however, is the only family member that has red hair color. What conclusion can you draw about the gene for hair color?

1

How many chromosomes are present in the human cell nucleus?

1

Traits that hide other traits when passed on to offspring are called __________________
_______________.

1

_________________ is the transfer of traits from one generation to another generation.

1

_________________ ______________ is a learned trait and is not genetically passed down
to offspring.

1

__________________ _____________ shows its specific trait when both parents pass the
gene to the child.

1

Inheretid traits is a characteristic or features of one organism that are
passed from parent to offspring.

1

A yellow flowered plant (YY) breeds with a red flowered plant (RR). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (YR) flowers?

1

What kind of dominance is exhibited by the cat below?

1

Use the punnett square to answer.
What is the probability of having a child with attached earlobes?

1

Snapdragons are genetically diverse type of flowers. When red (R) and white (W) snapdragons are crossed, they result in a pink variety. If two pink snapdragons are crossed, what are the possible genotypes of the offspring ?

1

Sickle Cell Anemia is condition that shows codominance. The genotype for normal blood cells is NN. Sickle cell trait is the heterozygous condition (NS) and contains both normal and sickle shaped blood cells. Sickle cell disease (SS) is when all of the blood cells are sickle-shaped and has lifelong medical implications. A man with sickle cell trait has a child with a woman with sickle cell trait.What is the probability of having a child with sickle cell trait?