Mendel And His Peas; Understanding Inheritance Question Preview (ID: 42390)


Chapter 5 Lesson 1 And 2. TEACHERS: click here for quick copy question ID numbers.

a true-breeding purple-flower plant crossed with a true-breeding white-flower plant
a) A. all white-flower plant
b) B. all purple-flower plants
c) C. mostly purple-flower plants
d)

a cross between two hybrid purple-flower plants (purple and white)
a) A. all purple flower plants
b) B. mostly white-flower plants
c) C. mostly purple-flower plants
d)

a hybrid purple-flower plant (purple and white) crossed with a true-breeding white-flower plant
a) A. all purple-flower plants
b) B. mostly purple-flower plants
c) C. half purple-flower plants and half white-flower plants
d)

Out of the many hybrid pea plants that Mendel crossed, about what percent of the second-generation plants had the dominant form of each trait?
a) 100%
b) 75%
c) 50%
d) 25%

Out of the many hybrid pea plants that Mendel crossed, about what percent of the second-generation plants had Out of the many hybrid pea plants that Mendel crossed, about what percent of the second-generation plants had the recessive from of trait?
a) 100%
b) 75%
c) 50%
d) 25%

Why did Mendel use cross-pollination in his experiments?
a) A. to speed up self-pollination
b) B. to control which plants pollinated other plants
c) C. to make sure dominant factors were always produced
d)

What did Mendel conclude about inherited traits?
a) A. One factor controls each inherited trait.
b) B. Two factors control each inherited trait.
c) C. Multiple factors control each inherited trait.
d)

fertilization that occurs when pollen from one plant lands on the pistil of a flower on the same plant
a) cross-pollination
b) self-pollination
c) true-breeding plant
d) hybrids

fertilization that occurs when pollen from one plant reaches the pistil of a flower on a different plant
a) self-pollinations
b) hybrid
c) cross-pollination
d) true-breeding plant

plants that produce the same traits as parents when they are self-pollinated
a) hybrids
b) dominant
c) recessive
d) true-breeding plants

a genetic factor that is blocked by the presence of a dominant factor
a) dominant
b) recessive
c) hybrid
d)

a genetic factor that blocks another genetic factor
a) recessive
b) dominant
c)
d)

the passing of traits from parents to offspring
a) genes
b) genetics
c) alleles
d) heredity

offspring from parents with different forms of the same trait
a) hybrids
b) true-breeding plant
c) dominant
d) recessive

Segments of chromosomes that contain coded information for an organism’s traits are called
a) cells
b) genes
c) alleles
d) genotypes

The outward expression, or appearance, of a genetic trait is its
a) allele
b) pedigree
c) phenotype
d) genotype

The designation Rr for a pea-plant’s peas shows that the plant is
a) purple
b) a hybrid
c) homozogous
d) a true-breeding plant

A model that is used to show possible outcomes of cross-breeding is a
a) ratio
b) coin toss
c) pedigree
d) Punnett square

A cow with red hairs and white hairs in its coat is an example of
a) codominance.
b) multiple alleles
c) polygenic inhertience
d) incomplete dominance

Variations in people’s height and eye color are due to
a) codominance
b) multiple alleles
c) polygenic inheritance
d) incomplete dominance

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