Heredity

Front

Genotype made of the same allele

Back

homozygous

Answer explanation

The presence of two identical alleles at a particular gene locus is called a homozygous. A homozygous genotype may include two normal alleles or two alleles that have the same variant.

Front

Different forms of genes for a single trait.

Back

allele

Answer explanation

An allele is one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.

Front

Gene that is always expressed

Back

dominant

Answer explanation

A dominant allele is a variation of a gene that will produce a certain phenotype, even in the presence of other alleles.

Front

Gene that is expressed only in the homozygous state

Back

recessive

Answer explanation

Recessive refers to a type of allele which will not be manifested in an individual unless both of the individual's copies of that gene have that particular genotype.

Front

Genotype made of two different traits.

Back

heterozygous

Front

Determine which is an example of dominant allele: D, E, f; d, E, F; D, E, F; d, e, f

Back

D, E, F

Answer explanation

Dominanat allele is represented by big/ capital letter.

Front

Determine which is an example of homozygous dominant. Options: AA, KK, Ll, Mm, Dd, ff, BB, vv

Back

AA, KK

Answer explanation

Homozygous dominant are alleles that is the same and is always being expressed. Ex. BB, GG

Front

Which of the following is NOT a recessive allele? Options: M, N, o, e, f, g, s, t ,u, a, b ,c

Back

M, N, o

Answer explanation

M, N, o is not a recessive allele because there is a dominant allele in the set of letters.

Front

Which of the following genotype must show a dominant allele? Options: AA, Dd, Rr, ee, ff, gg, aa,cc, tt, dd, ww, qq

Back

AA, Dd, Rr

Front

Determine which of the following is a homozygous recessive: Aa, EE, ii, oO

Back

ii