Heredity

What is genetics?

• The study of DNA nucleotides
• The study of heredity
• The study of a cell dividing into 2
• The study of eye color

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS1-1

What is a recessive allele?

• A trait that is always shown (capital letter)
• A trait that can be hidden (lower case letter)
• Alleles that are the same
• Alleles that are different

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is a dominant allele?

• A trait that is always shown (capital letter)
• A trait that can be hidden (lower case letter)
• Alleles that are the same
• Alleles that are different

Tags

NGSS.HS-LS3-1

The first generation of offspring is noted as

• P

• F2

• 1F

• F1

The alleles for a hybrid tall pea plant

are represented as

• TT

• Tt

• TS

• tt

The alleles for a purebred tall pea plant

are represented as

• TT

• Tt

• TS

• tt

What does the notation TT mean to geneticists?

• two dominant alleles

• two recessive alleles

• one dominant and one recessive allele

When a new organism begins to form. A female sex cell, the egg, and a male sex cell, the sperm, join together.

• fertilization

• purebred

• hybrid

• genetics

One parent has TT alleles and the other parent has tt alleles. What will be the alleles of the F1 generation?

• TT

• tt

• Tt

• TTtt

• TtTt