Genetics

Two identical alleles for a trait is known as

• homozygous

• heterozygous

• mutation

• codominance

Tags

NGSS.HS-LS3-1

A physical appearance is

• genotype

• heterozygous

• phenotype

• codominance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Who studied different characteristics of pea plants by cross-pollinating plants?

• Gregor Mendel

• Albert Punnett

• Sir Isaac Newton

• David Kuster

Genotype is

• stem height

• feather color

• physical appearance

• genetic makeup

Tags

NGSS.HS-LS3-1

If a homozygous black cat (BB) is crossed with a homozygous white cat (bb), what is the probability of having a cat with white fur?

• 100%

• 0%

• 75%

• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

One form of a gene is called_______________

• a DNA
• a Phenotype
• a trait
• an allele

Tags

NGSS.HS-LS3-1

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous
• DNA

Tags

NGSS.HS-LS4-4

How many alleles (letters) does a child get from each parent for each trait?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many alleles (letters) do each person carry for a trait?

• 1
• 2
• 3
• 4

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