ADV Mono/Dihybrid 2023

What goes in box 3

• Aabb
• AABB
• AAbb
• aaBb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In a population of cats, the gene for long hair (H) is dominant and the gene for short hair (h) is recessive. A breeder crosses a heterozygous long-haired male with a homozygous short-haired female. What percentage of offspring would have short hair?

Mice have two unlinked allele pairs that affect fur color. The table shows how allele pairs affect fur color. The term “agouti” describes fur with pigmentation that changes in each hair from the shaft to the tip, giving the fur a banded appearance. Mice with the aa allele pair are albino, regardless of the second allele-pair combination.
What is the probability of albinism in the offspring of a cross between two mice with AaBb alleles?

• 1/16

• 3/16

• 4/16

• 9/16

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Match the vocabulary definitions to the terms.

• heterozygous

• allele combination

• genotype

• physical expression

• phenotype

• having 2 different alleles

• homozygous

• 2 of the same alleles

A teacher prepared a dihybrid cross Punnett square and a key to dominant and recessive traits.

How is the genotype Ttrr described?

• Heterozygous tall, homozygous wrinkled

• Heterozygous short, homozygous wrinkled

• Heterozygous short, homozygous round

• Homozygous tall, homozygous wrinkled

Somatic cells are formed during what process?

• meiosis

• mitosis

• DNA replication

• interphase

Tags

NGSS.HS-LS1-4

What is a gamete?

• a body cell (ex. skin or heart cell)

• an autosome

• a sex cell (ex. sperm or egg)

• a somatic cell

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The process of crossing over in meiosis

• increases genetic variation

• helps ensure the same amount of DNA in each cell

• helps to create new types of cells

• ensures each cell is identical

Tags

NGSS.HS-LS3-2

This image shows chromosomes during Prophase 1. Which of the following correctly describes the process shown?

• segregation of sister chromatids
• condensation and segregation of alleles
• mutationin which the DNA content of the gene is altered
• crossing - over in which alleles are exchanged

The end of meiosis results in  ____ to each other.

• 2 cells that are identical
• 4 cells that are identical
• 2 cells that are not identical
• 4 cells that are not identical