Genetics

Question 1

study of heredity, how traits are inherited from parents to offspring

Answer 1

genetics

Question 2

unit of heredity, section of dna sequence

Answer 2

gene

Question 3

alternative forms of a gene

Answer 3

alleles

Question 4

fixed loaction on a strand of dna where gene or one of its alleles is located

Answer 4

locus

Question 5

term

parental (pure-breds/true-breeding)

Answer 5

P

Question 6

term

first filial generation; offspring from P generation

Answer 6

F1

Question 7

second filial generation of genetic cross (F1 X F1)

Answer 7

F2

Question 8

genetic cross involving a single pair of genes (one trait)

Answer 8

monohybrid cross

Question 9

genetic cross involving a parir of genes (two traits)

Answer 9

dihybrid cross

Question 10

austrian monk who worked with pea plants and is known as the father of genetics

Answer 10

gregor mendel

Question 11

law

states that alleles of a gene seperate when gametes are formed

Answer 11

principal of segregation

Question 12

law

states that segregation of alleles of one gene is independent of one gene is independent of the segregation of alleles of another gene during gametes formation

Answer 12

principal of independent assortment

Question 13

types of alleles

allele of gene that suppresses expression of other allele

Answer 13

dominant

Question 14

type of allele

represented by capital letter

Answer 14

dominant

Question 15

type of allele

allele that is masked by a dominant allele

Answer 15

recessive

Question 16

type of allele

represented by lowercase letter

Answer 16

recessive

Question 17

physical and observable apperance

ex: purple flower

Answer 17

phenotype

Question 18

genetic combination of alleles

ex: YY,Yy, yy

Answer 18

genotype

Question 19

both alleles are the same for a trait

ex: YY, yy

Answer 19

homozygous allele/true-breeding

Question 20

alleles are different for a trait

ex: Yy

Answer 20

heterozygous allele/hybrid