Genetics ig

Question 1

Gene

Answer 1

A section on a chromosome that has genetic information for one trait.

Question 2

Allele

Answer 2

A different form of the gene.

Question 3

Phenotype

Answer 3

Geneticists call how a trait appears, or is expressed, the phenotype of the trait.

Question 4

Genotype

Answer 4

The two alleles that control the phenotype of a trait are called the traits genotype.

Question 5

Homozygous

Answer 5

When the two alleles of a gene are the same, its genotype is homozygous.

Question 6

Heterozygous

Answer 6

If the two alleles of a gene are different.

Question 7

Punnett Square

Answer 7

A model used to predict possible genotypes and phenotypes of offspring.

Question 8

Pedigree

Answer 8

A diagram is a diagram that shows phenotypes of genetically related family members that gives clues about genotypes.

Question 9

Dominate Trait

Answer 9

A genetic factor that blocks another genetic factor

Question 10

Recessive trait

Answer 10

A genetic factor that is blocked by the presence of a dominant factor