Genetics

The sex of an offspring is ultimately determined by ______________________.

• the mother

• the father

• the mother and the father

• by the environment

Which of the following alleles is homozygous recessive?

• Tt
• tt
• TT
• T

Tags

NGSS.HS-LS3-1

What is the definition of phenotype?

• The physical appearance of a trait

• The genetic combination of alleles

• A gene on the DNA strand

Which of the following genotypes would be considered heterozygous?

• BB
• gg
• Ff
• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Genotype refers to the ...

• physical expression of the genes

• the combination of alleles for a trait

• whether an allele is dominant or recessive

• how an organism will appear

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?

• Purebred
• Hybrid

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An offspring will receive how many alleles from EACH parent to determine a specific trait?

• one

• two

• three

• five

Tags

NGSS.HS-LS3-1

the passing of genetic traits from parent to offspring.

• heredity
• trait
• gene
• allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome

Tags

NGSS.HS-LS3-1

having two different genes for a trait (sometimes called hybrid).

• protein
• homozygous
• heterozygous
• genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2