Genetics Review

B=brown eyes
b= blue eyes
What is true about these two brothers that have brown eyes:
One has genotype BB the other Bb.

• they have same phenotype and genotype
• they have different genotypes and phenotypes
• they have same phenotype but different genotypes
• they have same genotype but different phenotypes

Tags

NGSS.HS-LS3-1

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %
• 25%
• 50%
• 75%

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous genes
• mutated DNA

How many alleles (letters) does a child get from each parent for each trait?

• 1
• 2
• 3
• 4

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

What is the genotype for a pea plant heterozygous for round seeds (R), and homozygous recessive for green seeds (y)?

• Ry
• RRyy
• RrYy
• Rryy

What genotype is missing from this Punnett Square?

• RrYy
• RRYY
• rryy
• RrYY

This produces 2 identical cells.

• mitosis
• meiosis

Tags

NGSS.HS-LS1-4

The cells produced via meiosis are called:

• sex cells
• somatic cells
• body cells
• skin cells

Tags

NGSS.HS-LS3-2