chp 2.8

Question 1

what is Alleles

Answer 1

Alleles are versions of a gene that code for the same trait

Question 2

what is a genotype

Answer 2

the combination of alleles, inherited for a particular characteristic

Question 3

phenotype

Answer 3

outward expression,
appearance, description of a
characteristic. Phenotype is the result of genotype plus the environemtn

Question 4

dominant

Answer 4

A trait (phenotype) that requires only one allelle to be present for its expression in a heterozygote

Question 5

Recessive

Answer 5

a trait that will only be expressed in the absence of the allele for the dominant trait

Question 6

homozygous

Answer 6

a genotype in which the two alleles are identical, (BB bb)

Question 7

heterozygous

Answer 7

a genotype in which the two alleles are different (Bb)

Question 8

homozygous dominant

Answer 8

a genotype where both alleles for the dominant trait are present (BB)

Question 9

homozygous recesive

Answer 9

a genotype where bothh alleles for the recessive trait are present( bb)