Inheritance

Question 1

Define genotype

Answer 1

genetic combination for an organism

Question 2

Define phenotype

Answer 2

expression of the genotype and its interaction with the environment

Question 3

Define alleles

Answer 3

different forms of the same gene

Question 4

Define gene

Answer 4

short section of DNA that codes for a specific sequence of a.a

Question 5

Define nucleotide

Answer 5

monomers which make up DNA and RNA - base, pentose sugar, phosphate

Question 6

Define locus

Answer 6

location of gene on chromosome

Question 7

Define homozygous

Answer 7

a pair of homologous chromosomes carrying the same 2 alleles for a single gene

Question 8

Define heterozygous

Answer 8

pair of homologous chromosomes carrying 2 different alleles for a single gene

Question 9

Define monohybrid

Answer 9

genetic inheritance cross of a characteristic determined by 1 gene

Question 10

Define dihybrid

Answer 10

inheritance of 2 different characteristic controlled by 2 different genes in a chromosome

Question 11

Define codominant

Answer 11

both alleles expressed in the phenotype

Question 12

Define sex linkage

Answer 12

gene whose locus is on x/y chromosome

Question 13

Define multiple alleles

Answer 13

more than 2 alleles for a characteristic but only 2 can be present in an organism

Question 14

Define epistasis

Answer 14

presence of an allele/gene that masks the expression of a different pheotype