c17 mendelian patterns of inheritance 1

Question 1

most of mendel’s experiments were conducted using _____ plants

Answer 1

pea or pisum sativum

Question 2

in genetic crosses, the term “hybrid” refers to _____

Answer 2

offspring of a hybridization experiment

Question 3

a cross in which only one character is studies is called a(n) _____-______ cross

Answer 3

single-factor

Question 4

homozygous dominant

Answer 4

TT

Question 5

heterozygous

Answer 5

Tt

Question 6

homozygous recessive

Answer 6

tt

Question 7

in pea plants, when a true-breeding line with axial flowers is crossed with a true-breeding line with terminal flowers, all of the F1 offspring have axial flowers. What phenotypic ratio is expected in the F2 generation?

Answer 7

3 axial; 1 terminal

Question 8

what is the purpose of a testcross?

Answer 8

to determine the genotype of an individual with a dominant phenotype

Question 9

a cross that follows the simultaneous inheritance of two different characters is called a(n) ____-_____ cross

Answer 9

two-factor

Question 10

what type of plant did mendel use for most of his work?

Answer 10

pea

Question 11

the offspring of hybridization experiments are referred to as

Answer 11

hybrids

Question 12

a single-factor cross is one in which an experimenter follows

Answer 12

the variants of only one character

Question 13

in pea plants, purple flowers are dominant to white flowers, and the purple and white alleles are represented with P and p, respectively. In a cross between 2 heterozygotes, what proportion of the offspring are expected to be purple?

Answer 13

3/4

Question 14

an individual with a dominant phenotype may be either homozygous or heterozygous. to determine the exact genotype of this individual a method called a(n) ______ can be used

Answer 14

testcross

Question 15

a two-factor cross is one in which an experimenter follows the inheritance of ______

Answer 15

two different characters