Genetics & Inheritance

shows the probability of all possible genotypes and phenotypes of offspring from a particular cross

• Punnett square

• pedigree

• genetics

• heredity

alleles that are on an X or Y chromosome

• sex-linked trait

• heredity

• genes

• alleles

• chromosome

a gene with different information for a trait

• chromosome

• allele

• gene

• mutation

coiled strands of DNA

• allele

• chromosomes

• gene

• DNA

genetic factor that blocks another genetic factor

• dominant

• recessive

• gene

• strong

a segment of DNA on a chromosome that codes for a specific trait

• allele

• gene

• mutation

• chromosome

What types of cells are found only in organisms that reproduce sexually?

• blood cells

• neurons

• skin cells

• gametes

Mitosis & meiosis are similar processes. Which describes what can only occur after meiosis?

• Parent cells can be either haploid or diploid.

• Products of cell division result in identical genotypes.

• 4 daughter cells are produced by a single parent cell.

• The number of chromosomes per nucleus remains the same after division.

Why does sexual reproduction result in more genetic diversity than asexual reproduction?

• Traits from two parents are combined

• More organisms reproduce this way

• Offspring grow in different environments.

• Offspring come from identical parents.

How many genes for each trait does a child inherit?

• 2

• 3

• 4

• 1