Work Of Gregor Mendel: Question Preview (ID: 16211)

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Gregor Mendel is sometimes refered to as:
a) the monk-key
b) the father of genetics
c) Pea Picker
d) monk of peas

If you crossed two hybrid tall pea plants, what phenotypes would be produced?
a) 1/4 TT, 1/2 Tt, and 1/4 tt
b) all tall
c) 75% tall and 25% short
d) all Tt

Which is NOT true of a hybrid.
a) Its genotype contains one capital and one small letter.
b) Its phenotype is the dominant trait
c) It is purebred.
d) It is heterozygous.

If an organism is the product of many generations that have the same trait, then that organism is:
a) purebred
b) hybrid
c) genetically perfect
d) fertilized

What is the result of a cross of a hybrid tall pea plant and a purebred tall pea plant?
a) all tall
b) 3/4 tall and 1/4 short
c) 1/2 tall and 1/2 short
d) all short

If an allele is represented by a capital letter, what does this indicate?
a) It always comes first.
b) It is on a chromosome.
c) It is a recessive allele.
d) It is a dominant allele.

What did Mendel do in order to prevent self-pollination in his pea plants?
a) He didn't do anything. Pea plants can't self-pollinate.
b) He removed the pollen producing structure (stamen).
c) He planted each plant in a different area of the garden.
d) He added a chemical which prevented fertilization.

What does the P stand for in Parental Generation?
a) prime generation
b) pea generation
c) parental generation
d) possible generation

What does the F in F1 generation stand for?
a) family
b) filial in Latin which means daughter/son
c) final
d) first

What happened to Mendel's plants when he crossed purebred tall peas with purebred short peas?
a) 3:4 were tall and 1:4 were short
b) 1:2 were tall and 1:2 were short
c) all of them were short
d) all of them were tall

An organism with 2 identical alleles for a trait is
a) homozygous
b) heterozygous
c) recessive
d) dominant

The different forms of a gene are called:
a) alleles
b) phenotypes
c) genotypes
d) chromosomes

What is a recessive allele?
a) chromosomes
b) the trait that you isn't noticeable
c) trait may be masked when other alleles are present
d) one whose trait always shows up in the organism when the allele is present

What is a dominant allele?
a) one whose trait may be masked when other alleles are present
b) chromosomes
c) the trait that you notice first
d) one whose trait always shows up in the organism when the allele is present

What trait(s) did the plants in the F2 generation of Mendel's experiment exhibit?
a) 75% short and 75% tall
b) 75% tall and 25% short
c) all tall
d) all short

What trait(s) did the plants in the F1 generation of Mendel's experiment exhibit?
a) 100% tall
b) 25% tall and 75% short
c) 75% tall and 25% short
d) 50% tall and 50% short

In Mendel's cross for stem height, what contrasting traits did the pea plants in the P generation exhibit?
a) fat and thin
b) purple and white
c) rough and smooth
d) tall and short

The joining of a sperm and egg is:
a) fertilization
b) hybridization
c) genetic crossing
d) probability

A characteristic that an organism can pass on to its offspring through its genes is a:
a) gene
b) chromosome
c) trait
d) DNA

The passing of physical characteristics from parents to offspring is called:
a) heredity
b) genes
c) fertilization
d) hybridization

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