Genetics

Having two of the same alleles for a trait

The alleles dd are

Similar to a family tree; graphic representation of a family’s traits

What affects the expression of a gene in an individual?

Cross involving two traits

The study of the heredity of traits from one generation to the next

The alleles Rr are

Babies are tested for this at birth. The inability to break down a certain AA in proteins.

The uniting of male and female gametes

Tallness is _______________ over shortness

Another word for a homozygous individual

Stronger of two genes expressed in the hybrid (represented by a capital letter)

Male has an extra X chromosome making the genotype XXY. Prevents reproduction (sterile)

What kind of alleles cause most genetic disorders?

R is round and r is wrinkled. What is the phenotype for Rr?

The results of the disease are misshapen red blood cells.

Another word for a heterozygous individual

Dad has A (IAIA) blood and the mom has O blood. What is the probability of a child with O?

Mendel used math and pollination to successfully research genetics

The second generation offspring in a breeding experiment

A method of predicting the outcome of a cross; used to help solve genetics problems

Passing of trait from parent to offspring

Two alleles are expressed (multiple alleles) in heterozygous individuals. Ex is blood typing

Why did Gregor Mendel choose pea plants?

Sperm and egg (haploid cells used in sexual reproduction; each makes 2n)

The first generation offspring in a breeding experiment

Any characteristic that can be passed from parent to offspring

The trait in the pedigree is

Dad has A (IAIA) blood and the mom has O blood. What is the probability of a child with A?

This disease produces large amounts of mucous in the respiratory and digestive tracts.

What is the phenotypic ratio when you cross GgRr x GgRr (heterozygous dihybrid)

How many gametes will be produced? AaBbCC

Set of alleles that an organism has for any inherited characteristic

Having two different alleles for a trait

Sex-linked disorder that results in the progressive weakening and loss of skeletal muscle

If I cross two purebred plants. One tall and one short, what would the offspring be?

Treatable disease involving the inability to form clots in the blood.

Is this a male or female: XY

The alleles GG are

The way an organism looks and acts

Is this a male or female: XX

Gene that shows up less often in a cross (represented by a lower case letter)

Cross involving one trait

The parental generation in a breeding experiment

Two forms of a gene

Transfer of pollen from the stamen (male part of the plant) to the pistil (female part)

F1 hybrids have appearance in between the phenotypes parental varieties. EX: Rr is pink