SB3g Alleles

Question 1

allele

Answer 1

different versions of the same gene

Question 2

dominant

Answer 2

allele that will always affect the phenotype

Question 3

genetic diagram

Answer 3

diagram showing how the alleles in 2 parents may form different combinations in the offspring when the parents reproduce

Question 4

genetic variation

Answer 4

inherited variation, differences between organisms passed on to offspring by their parents in reproduction

Question 5

genotype

Answer 5

the alleles for a certain characteristic found in an organism

Question 6

heterozygous

Answer 6

when both the alleles for a gene are different in an organism

Question 7

homozygous

Answer 7

when both the alleles for a gene are the same in an organism

Question 8

monohybrid inheritance

Answer 8

the study of how the alleles of just one gene are passed from parent to offspring

Question 9

phenotype

Answer 9

the characteristics that a certain set of alleles produce

Question 10

ratio

Answer 10

a relationship between two quantities, usually showing the amount of times 1 value is bigger than the other

Question 11

recessive

Answer 11

allele that will only affect the phenotype if the other allele is also recessive

Question 12

zygote

Answer 12

fertilised egg cell