Answers FL-2002070-MJ Comprehensive Science 2Introduction to Heredity

Introduction to Heredity Answers

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A plant is homozygous for flower color. Its flowers are pink.Which conclusion is best supported by the information?

Flower color is a recessive trait.

Flower color is a dominant trait.

Both parents had an allele for pink flower color.

Only one parent had an allele for pink flower color.

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The diagram shows a chromosome pair for an offspring.

An allele for eye color was inherited from only one parent.

An allele for hair type was inherited from only one parent.

The offspring is homozygous for eye color.

The offspring is homozygous for hair type.

Which descriptions apply to Mendel’s pea plant experiments? Select three options. studied first generation plants onlyrelied on random pollination and reproduction of plantsused cross breeding to purposely breed plantsstudied a variety of pea plant traitsfocused primarily on breeding larger, healthier pea plantsstudied several generations of plants

studied first generation plants only

relied on random pollination and reproduction of plants

used cross breeding to purposely breed plants

studied a variety of pea plant traits

focused primarily on breeding larger, healthier pea plants

studied several generations of plants

A rose plant inherited two alleles for white flower petals.Which conclusion is best supported by the given information?

Each parent had at least one allele for white petals.

Each parent must have had more than one allele for white petals.

Only one parent had one allele for white petals.

Only one parent had two alleles for white petals.

Which is an example of an inherited trait?

knowing how to add

building muscle tone

becoming a piano player

having a round face

AllelesGeneticsGenerationsExperiments

Alleles

Genetics

Generations

Experiments

A bean plant is heterozygous for seed shape. Its seeds are smooth.Which conclusion is best supported by the information?

Having smooth seeds is a recessive trait.

Having smooth seeds is a dominant trait.

Both parents had a recessive allele for seed shape.

Neither parent had a recessive allele for seed shape.

Mendel studied "factors" that allowed for physical characteristics, which can have alternate versions, to be passed onto offspring. What are these factors called?

plants

traits

alleles

phenotypes

A scientist has a pea plant with yellow seeds. It has one allele for yellow seeds (Y) and one for green seeds (y).Which describes the genotype of the pea plant?

yellow seeds

green seeds

homozygous

heterozygous

Which is a dominant trait that Mendel observed in pea plants?

bumpy pods

short height

yellow seeds

white flowers

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