7A Inheritance

Question 1

Define gene

Answer 1

A sequence of bases on a DNA molecule that codes for a polypeptide that results in a characteristic

Question 2

Define allele

Answer 2

All the different forms of a gene

Question 3

Define genotype

Answer 3

The genetic constitution of an organism- the alleles it

Question 4

Define phenotype

Answer 4

An organisms characteristic

Question 5

Define dominant

Answer 5

An allele whose characteristic is always expressed even if there is only one copy

Question 6

Define recessive

Answer 6

An allele that only appears in the phenotype if two copies are present

Question 7

Define Co dominant

Answer 7

Alleles that are both expressed in the phenotype

Question 8

Define locus

Answer 8

The fixed position of a gene on a chromosome

Question 9

Define homozygote

Answer 9

An organism that carries two copies of the same allele

Question 10

Define heterozygote

Answer 10

An organism that carries two different alleles

Question 11

Define carrier

Answer 11

A person carrying an allele that is not expressed in the phenotype but can be passed on to the offspring