Genetics

Which of the following alleles is homozygous (purebred) recessive?

• Tt

• tt

• TT

• t

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa

What are physical characteristics of an organism?

• Alleles

• Genotypes

• Genes

• Traits

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Hair color, height, eye color and freckles are examples of human traits. What do we call the physical expression of the genetic material of an organism?

• genetics

• heredity

• genotype

• phenotype

Bb is a ______.

• genotype

• phenotype

Heterozygous is when...

• the alleles are the same

• the alleles are different

• the alleles are absent

• the alleles are present

Tags

NGSS.HS-LS4-3

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

• rr

• R

• RR

• RR or Rr

Tags

NGSS.HS-LS3-2

In this punnett square, which is the dominant trait?
The B stands for bud.

• purple flower bud

• white flower bud

• dominant

• recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The study of heredity and the variation of inherited characteristics 

• gene

• genetics 

• meiosis 

• hybrid 

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2