6.3 Inheritance

Question 1

What are alleles?

Answer 1

different forms of a gene

Question 2

Which two ways can alleles be classified?

Answer 2

dominant

recessive

Question 3

What is an organism’s genotype?

Answer 3

the alleles it carries

Question 4

What is an organism’s phenotype?

Answer 4

it’s observable characteristics

Question 5

What is the name of an individual with two of the same alleles?

Answer 5

homozygous

Question 6

What is the name of an individual with two different alleles?

Answer 6

heterozygous

Question 7

If an individual has the alleles BB what are they called?

Answer 7

homozygous dominant

Question 8

If an individual has the alleles bb what are they called?

Answer 8

homozygous recessive

Question 9

What do the notations F1 and F2 mean?

Answer 9

first generation

second generation

Question 10

If an individual has the genotype Bb what will their phenotype be? (in terms of eye colour)

Answer 10

brown eyed

Question 11

What is another term for homozygous?

Answer 11

true breeding

Question 12

What is selective breeding?

Answer 12

choosing organisms with useful characteristics to breed meaning these characteristics will become more common in the population

Question 13

What determines an organisms characteristics?

Answer 13

genes inherited from parents