Genotypes

homozygous dominant

• RR

• rr

• Rr

Answer explanation

The term 'homozygous dominant' refers to an organism with two identical dominant alleles. In this case, 'RR' represents homozygous dominant, while 'rr' is homozygous recessive and 'Rr' is heterozygous.

What is the genotype for a homozygous recessive trait?

• AA

• aa

• Aa

Answer explanation

The genotype for a homozygous recessive trait is represented by two lowercase letters, indicating that both alleles are recessive. Therefore, the correct answer is 'aa', while 'AA' and 'Aa' represent dominant or heterozygous traits.

Which genotype represents a heterozygous individual?

• BB

• bb

• Bb

Answer explanation

A heterozygous individual has two different alleles for a trait. The genotype 'Bb' represents this, with 'B' being one allele and 'b' being another. In contrast, 'BB' and 'bb' are homozygous genotypes.

Identify the genotype for a homozygous dominant trait.

• CC

• cc

• Cc

Answer explanation

The genotype for a homozygous dominant trait consists of two identical dominant alleles. In this case, 'CC' represents the homozygous dominant genotype, while 'cc' is homozygous recessive and 'Cc' is heterozygous.

Tags

NGSS.HS-LS3-2

What is the genotype for a heterozygous trait?

• XX

• xx

• Xx

Identify the genotype for a homozygous recessive trait.

• YY

• yy

• Yy

Which genotype represents a homozygous dominant individual?

• ZZ

• zz

• Zz

What genotype is BB

What genotype is Bb

What genotype is bb