Genetics Review

If tall eyeballs (T) are dominant to short eyeballs (t), give the genotypes that are possible for tall eyeballs.

Select all of the following genotypes that are considered Heterozygous.

• AA

• Bb

• zz

• Dd

• Hh

Select all of the following genotypes that are considered Homozygous.

• AA

• bb

• Hh

• Dd

• zz

Which of the following is homozygous dominant?

• Yy

• Y

• yy

• YY

What does heterozygous mean?

• An organism that has the same alleles(genes) for a trait.

• An organism that has different alleles(genes) for a trait.

• When neither gene is fully dominant; offspring is a mixture of both.

• The different forms of a trait.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.

• DNA
• protein
• RNA
• glucose nucleic acid (GNA)

Tags

NGSS.HS-LS3-1

NGSS.HS-LS1-1

Mendel's law of segregation states that during meiosis, the alleles that control each trait separate, and only _________________ from each pair is/are passed to the offspring

• one allele
• the dominant trait
• two alleles
• the recessive trait

Tags

NGSS.HS-LS3-1

In humans, blue eyes are a recessive trait. What genotype would a blue eyed child have?

• BB

• Bb

• bb

• None of the above, brown eyes are dominant.

Tags

NGSS.HS-LS3-1

What is the mother's genotype?

• DD

• Dd

• dd

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2