AP biology final review

Imagine you are performing a cross involving seed color in garden pea plants. What F₁ offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green.

• 100 percent yellow-green seeds
• 100 percent yellow seeds
• 50 percent yellow, 50 percent green seeds
• 25 percent green, 75 percent yellow seeds

If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of?

• dominance
• codominance
• multiple alleles
• incomplete dominance

If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of?

• dominance
• codominance
• multiple alleles
• incomplete dominance

A recessive trait will be observed in individuals that are ________ for that trait.

• heterozygous
• homozygous or heterozygous
• homozygous
• diploid

Meiosis results in ______.

• 4 genetically distinct haploid gametes
• 2 genetically distinct cells
• 2 genetically identical cells
• 4 genetically identical cells

Tags

NGSS.HS-LS3-2

The chromosomes that pair up during meiosis, are called __________ chromosomes.  

• homozygous 
• asexual
• homologous
• genes

Tags

NGSS.HS-LS3-2

When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs

• crossing over
• mutagenesis
• hybridization
• fertilization

Tags

NGSS.HS-LS3-2

The observable outward manifestation of the genes of an individual is referred to as its

• blueprint
• genotype
• phenotype
• genetic map

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-5

Chromosomes that do NOT play a role in determining the sex of an individual are called

• sex chromosoems
• X and Y
• autosomes
• A and B are correct

In a sex-linked inheritance pedigree you would expect to see

• more affected females
• all carrier males
• more affected males
• an equal number of affected males and females

Tags

NGSS.HS-LS3-3