Genetics Test

In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?

• Tall = T
  Short = S

• Tall = T
  Short = t

• Tall = t
  Short = T

• Tall = TT
  Short = tt

A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?

• 
  0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What you see, or the physical appearance.

• Genotype

• Phenotype

• Homozygous

• Heterozygous

Tags

NGSS.HS-LS4-4

What is the probability of heterozygous offspring?

• 25%

• 50%

• 0%

• 100%

Tags

NGSS.HS-LS3-3

In a pedigree, what shape represents a male?

• 
  circle

• triangle

• 
  square

• diamond

How many generations are shown in this pedigree?

• 1

• 2

• 3

• 4

Receiving genes from your parent(s) is called...

• genetics

• 
  inheritance

• 
  heredity

• dominance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• 
  Tt

• TT

• 
  tt

• t

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

• dominant

• 
  recessive

• lower case letter

• both 

the passing of genetic traits from parent to offspring.

• trait

• gene

• allele

• heredity

Tags

NGSS.HS-LS3-1