Heredity and genetics test

Mrs. oulette

Physical characteristic

Trait

The twoo copies of every gene are called the two ___

Alleles

The allele that is expresses itself if present even in single copy is called the ___ allele

Dominant

A ___ allele is expressed only if present in two copies

Recessive

An allele is a

Version of a gene

Any one person can have only ___ alleles for every gene

2

If both forms of a gene are identical, it is called

Homozygous

If the allele is expressed in a single copy, it is ___ over the other allele

Dominant

THe genes and organism inherits can be described as its

Genotype

genotype is expressed through protein synthesis as the observable traits, also known as…

Phenotypes

Genotype is expressed with 2 letter, which indicate the 2 ___ of a gene

Alleles

If a genotype is indicated with letters, “Aa”, “A”, and “a” indicate the two ___

Alleles

In “Aa”, if the dominant allele is denoted with capital letter, what does “a” allele represent?

Recessive allele

IF a person has genotype “AA” for hair color, he is ___ for the hair color gene

Homozygous

A person who has a genotype “Aa” for hair color is ___ for the hair color gene

Heterozygous

Someone who is homozygous for a particular gene, gets ___ copies of a gene from both parents.

Identical

Osm