17 - Inheritance

Question 1

genotype

Answer 1

genetic constitution of an organism, the genes and alleles it possesses

Question 2

phenotype

Answer 2

the observable characteristics of an organism as a result of the interaction between the expression of the genotype and the environment

Question 3

locus

Answer 3

position occupied by a gene on a particular DNA molecule

Question 4

codominant alleles

Answer 4

both alleles contribute to the phenotype

Question 5

multiple alleles

Answer 5

a gene with more than two alleles

Question 6

monohybrid inheritance

Answer 6

inheritance of a single gene

Question 7

dihybrid inheritance

Answer 7

the inheritance of two different genes at different loci

two heterozygous organisms are crossed the ration of genotypes will be 9:3:3:1

Question 8

law of independent assortment

Answer 8

in gamete formation, each member of a pair of alleles may combine randomly with either of another pair

Question 9

sex linkage

Answer 9

any gene carried on either the X or Y chromosome is sex-linked

Question 10

autosomal linkage

Answer 10

where two or more different genes are carried on the same autosome

Question 11

epistasis

Answer 11

the allele of one gene affects or masks the expression of another in the phenotype