genetics

Question 1

branch of biology that deals with heredity and variation of organisms.

Answer 1

genetics

Question 2

carry the hereditary information (genes)

Answer 2

chromosome

Question 3

prior to ____________, heredity was regarded as a “blending” process

Answer 3

gregor johann mendel

Question 4

one form of a hereditary trait dominates or prevents the expression of the recessive trait

Answer 4

dominance

Question 5

splitting of chromosomes during meiosis

Answer 5

segregation

Question 6

combining chromosomes from both the sperm and egg (fertilization)

Answer 6

recombination

Question 7

independent segregation of genes during the formation of gametes

Answer 7

independent assortment

Question 8

one allele (dominant) masks the effect of another allele (recessive)

Answer 8

principle of dominance

Question 9

unit of heredity

Answer 9

gene

Question 10

two genes that occupy the same position on homologous chromosomes and that cover the same trait

Answer 10

alleles

Question 11

having identical genes for a particular characteristic

Answer 11

homozygous

Question 12

only has genes for the dominant trait

Answer 12

pure dominant

Question 13

only has genes for the recessive trait

Answer 13

pure recessive

Question 14

having two different genes for particular characteristic

Answer 14

heterozygous

Question 15

the allele of a gene that masks or suppresses the expression of an alternate allele; the trait appears in the heterozygous condition

Answer 15

dominant

Question 16

an allele that is masked by a dominant allele; does not appear in the heterozygous condition, only in homozygous.

Answer 16

recessive

Question 17

the genetic makeup of an organism

Answer 17

genotype

Question 18

the physical appearance of an organism

Answer 18

phenotype

Question 19

is a way to show the possible combinations of genes that offspring of parents could have

Answer 19

punnett square