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Write each phrase into the appropriate category.
a. cross between organisms that are the same for two traits
b. the cross was performed by Mendel using pure-breeding lines
c. cross between organisms that differ for three traits
d. cross between organisms that are the same for three traits
e. cross between organisms that differ for two traits
dihybrid cross trihybrid cross both none

Sagot :

luisvaschetto

Answer:

a. none

b dihybrid and trihybrid crosses (both)

c. trihybrid cross

d. none

e. dihybrid cross

Explanation:

A dihybrid cross can be defined as a mating experiment between two different varieties/lines that differ in two observed phenotypic traits, while a trihybrid cross is a cross between two varieties/lines that differ in three traits. For example, Mendel crossed two pea plants that differed in seed color (yellow and green) and seed shape (wrinkled and round). Mendel's experiments consisted of dihybrid and trihybrid crosses for different phenotypic traits. From these mating experiments, he observed dihybrid F1 plants produced 9:3:3:1 ratio of phenotypes in the F2 generation.

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