Meiosis and Genetics Review

Which best describes the genotype "GG""?

• homozygous dominant
• heterozygous
• homozygous recessive
• polyploidy

Which best describes the genotype "dd""?

• homozygous dominant
• heterozygous
• homozygous recessive
• polyploidy

Which best describes the genotype "Yy""?

• homozygous dominant
• heterozygous
• homozygous recessive
• polyploidy

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

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the possible genotypes for this cross?

• TT = 25% Tt= 50% tt=25%
• all tall
• TT= 75% tt = 25%
• Tt = 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

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

• Ry
• RRyy
• RrYy
• Rryy

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-LS3-2

In which type of cells will mitosis occur?

• egg cells
• sperm cells
• jail cells
• Body cells except the sperm and egg cells

Tags

NGSS.HS-LS1-4

In meiosis, the haploid number of chromosomes in a human sex cell is:

• 46
• 92
• 22
• 23

Tags

NGSS.HS-LS3-2

What is the name of the process in which DNA (genetic information) is exchanged during meiosis?

• crossing under
• crossing over
• melding
• blending

Tags

NGSS.HS-LS3-2