Heredity and Genetics

Brown (B) is the dominant fur color for rats. Black (b) is recessive (b). What is the phenotype for Bb?

• Black

• Brown

• Black with brown spots

• Grey

Green (G) pea plant pods are dominant to yellow (g). Which cross would produce 100 % green pea plant pods?

• BB X Bb

• Bb X Bb

• BB X bb

• bb X bb

Black feathers (B) are dominant to white (b) feathers in a certain species of birds. Which of the following genotypes represents homozygous white feathers?

• BB

• Bb

• bb

Black feathers (B) are dominant to white (b) feathers in a certain species of birds. Which of the following genotypes represents heterozygous Black feathers?

• BB

• Bb

• bb

Phenotype is

• the genetic makeup or combination of alleles

• the observable trait in the physical appearance

• the passing of traits from parents to offspring

• factors that control traits and are carried on DNA

Heredity is the passing of traits from _____________________ to _____________________

• predators to prey
• water to rain
• parents to offspring
• fungi to protists

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

___________________________ is the study of how traits are passed on, or inherited.

• dominant traits
• ratio
• phenotype
• genetics

How many chromosomes does offspring receive from a human father?

• 46
• 23
• 12
• none of the above

Tags

NGSS.HS-LS3-1

One of the alternative forms of a gene that governs a characteristic.

• Allele
• genetic variation
• genotype
• characteristic

Tags

NGSS.HS-LS3-2

P=purple flower color
p=white flower color, if a flower has a genotype Pp its phenotype would be

• white
• purple
• violet
• pink

Tags

NGSS.HS-LS3-1