What Is Genetics

The study of heredity and the variation of inherited characteristics 

• gene

• genetics 

• meiosis 

• hybrid 

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

Heterozygous is when...

• the alleles are the same

• the alleles are different

• the alleles are absent

• the alleles are present

Aa, DD, bB, yy are all examples of

• genotypes

• phenotypes

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

What you see, or the physical appearance.

• Genotype

• Phenotype

• Homozygous

• Heterozygous

Tags

NGSS.MS-LS3-2

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

• 1

• 2

• 3

• 4

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

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS3-2

One form of a gene is called_______________

• a DNA

• a Phenotype

• a trait

• an allele

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