8th Grade Review #3 (2nd)

The passing of traits from parents to offspring.

• heredity

• inheritance

• genetics

• biology

What are the two genetic factors?

• recessive traits
• submissive traits
• non-dominant traits
• powerful traits
• dominant traits

A variant form of a gene.

• Alleles

• Chromosomes

• Cytoplasm

• Nucleotides

Phenotypes determine what genotypes are expressed.

• True

• False

Dominant traits will be expressed by a...

• upper case letter

• lower case letter

Which of these are NOT forms of genotypes? Check all that apply.

• homozygous dominant

• heterozygous recessive

• heterozygous

• homozygous recessive

• heterozygous dominant

BB: What kind of genotype is this?

• homozygous recessive

• heterozygous

• homozygous dominant

A Punnett Square shows exactly the offspring that will inherit a certain trait.

• False

• True

What are the four different blood types?

• B
• O
• AB
• A
• CO

The three parts of a nucleotide.

• nitrogen base
• sugar
• phosphate group
• carbohydrate
• oxygen group