B13.7 Inheritance in action

Question 1

What is an allele?

Answer 1

Variations of genes

Question 2

What is Homozygote and Heterozygote?

Answer 2

Homozygote - an individual with 2 identical alleles for a characteristic e.g BB or bb

Heterozygote - an individual with different alleles for a characteristics e.g Bb

Question 3

What is a genotype?

Answer 3

Describes the alleles present or genetic makeup of an individual

Question 4

What is the phenotype?

Answer 4

Describes the physical appearance of an individual eg black fur or brown fur in mice

Question 5

What is an dominant allele?

Answer 5

Allele controlling development of characteristic even when present on
only one chromosome

Question 6

What is a recessive allele?

Answer 6

allele controlling development of characteristic only if present on both
chromosomes

Question 7

What does a punnet square give?

Answer 7

Alleles for a characteristic carried by the parents

Possible gametes that can be formed from the alleles