Genetics Test 2.0

Which term is used to describe the genotype Pp?

• Homozygous dominant

• Heterozygous

• Homozygous recessive

• Mixture

What does homozygous dominant mean?

• That both alleles for a gene are recessive, so the recessive form of the trait will be expressed.

• That one allele is dominant and one is recessive, which mean the dominant trait will be expressed in the offspring.

• That both alleles for a gene are dominant, so the dominant form of the trait will be expressed.

• That one allele is dominant and one is recessive, which mean the recessive trait will be expressed in the offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following contains only a SINGLE instruction for determining a trait in an organism?

• DNA molecule

• chromosome

• gene

• cell

How many PAIRS of chromosomes are there in most human cells?

• 58

• 46

• 23

• 12

The allele for green seeds in pea plants, G, is dominant. The allele for yellow seeds in pea plants, g, is recessive. Which combination would produce a plant with yellow seeds?

• GG

• Gg

• gG

• gg

If a baby goat received a dominant gene for curly hair from one parent, and a recessive gene for straight hair from the other, which trait will the baby goat display?

• No hair

• Curly hair

• Straight hair

• Curly and straight hair

The diagram show 4 living organisms. Which statement is true about the organisms shown?

• They are all single celled and have similar organs.

• They are all single celled and have identical organs.

• They are all multicellular and have similar organs.

• They are all multicellular and have identical organs.

Look at the diagram below. If the dominant allele is represented by R and the recessive allele is represented by r, what will the alleles look like for one of the black squares in the diagram?

• Rr

• rR

• RR

• rr

How many alleles do we inherit for each gene?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

What is heredity?

• The passing of traits from parent to offspring.

• A family tree that shows the relationships between an organism and its ancestors.

• A diagram that is used to predict the genotypes of offspring produced by two parents.

• A characteristic of an organism.