Genetics & Heredity Review

The passing of genetic traits from parent to offspring is called

• cross-pollination
• cross-breeding
• heredity
• genetics

Tags

NGSS.MS-LS3-2

If a plant with the genotype PP is crossed with a plant with the genotype pp, what are the possible genotypes of the offspring?

• PP, pp, pp, PP
• Pp, Pp, Pp, Pp
• Pp, PP, pp, PP
• PP, Pp, pP, pp

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

There are usually 46 chromosomes in a human

• sperm cell.
• egg cell.
• DNA molecule.
• body cell.

What is an organism’s appearance called?

• its genotype
• its phenotype
• its dominant trait
• its recessive trait

If most human offspring receive 23 chromosomes from the mother, how many chromosomes do they receive from the father?

• 20
• 78
• 46
• 23

The inherited combination of alleles is called the ______

• genotype
• phenotype
• chromosome
• DNA

Tags

NGSS.HS-LS4-3

Different forms of a single gene are called a(n) _________.

• gene
• chromosome
• allele
• genotype

Tags

NGSS.HS-LS3-2

Purple flowers are dominant to white flowers. What would the phenotype for a flower with genotype pp be?

• purple
• white
• pink
• yellow

What is a recessive allele?

• A trait that is always shown (capital letter)
• A trait that can be hidden (lower case letter)
• Alleles that are the same
• Alleles that are different

What is a dominant allele?

• A trait that is always shown (capital letter)
• A trait that can be hidden (lower case letter)
• Alleles that are the same
• Alleles that are different