Bio vocab - genetics

Question 1

Genetics

Answer 1

the study of hereditary patterns and variation of organisms

Question 2

Genes

Answer 2

specific region of DNA that codes for a particular protein

Question 3

Alleles

Answer 3

any of the alternate forms of a gene that occurs at a specific place on a chromosome

Question 4

Genotype

Answer 4

collection of all of an organism’s genetic information that codes for traits

Question 5

Phenotype

Answer 5

collection of all of an organism’s physical characteristics

Question 6

Dominant

Answer 6

allele that is expressed when two different alleles are present in an organism’s genotype

Question 7

Recessive

Answer 7

allele that is not expressed unless two copies are present in an organism genotype

Question 8

Homozygous

Answer 8

characteristic of having two of the same alleles at the same locus of sister chromatids

Question 9

Heterozygous

Answer 9

characteristic of having two different alleles that appear at the same locus of sister chromatids