Introduction to Genetics

Question 1

The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. Green pods are the dominant trait. The flowchart is missing the labels that describe the traits.In which squares should the phrase “Green pods” appear?

Revolt · Accepted Answer

A, C, and D only

Question 2

The table below summarizes Mendel’s results for the F2 generation.Mendel’s ResultsPlant height787 tall277 shortFlower color705 purple224 whitePod color428 green152 yellowPod shape882 inflated299 constrictedSeed color6,022 yellowx greenSeed shape5,474 smooth1,850 wrinkledWhat number should replace the letter x in the “Seed color” row?

Revolt · Accepted Answer

2,001

Question 3

Which statement best describes an understanding of genetics that would be missing without the work of Mendel?

Revolt · Accepted Answer

Some alleles are dominant, and some alleles are recessive.

Question 4

Why did Gregor Mendel use peas in his experiments?

Revolt · Accepted Answer

Peas have characteristics that have two forms.

Question 5

What alternate form of genes do nucleic acids have that allows them to offer variability?

Revolt · Accepted Answer

allele

Question 6

The table below summarizes the traits that Mendel examined during his experiments.Traits Studied by MendelWhat do these characteristics all have in common?

Revolt · Accepted Answer

They can all be easily observed.

Question 7

Scientists often use fruit flies as a method to test hypotheses about human genes. Why are fruit flies advantageous in the study of human inheritance?

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They reproduce quickly and take up little space.

Question 8

Which is the best example of a hypothesis leading to new experimental methods?

Revolt · Accepted Answer

Thomas Hunt Morgan continued the genetic research of Gregor Mendel, but Morgan used fruit flies.

Question 9

Which statement describes Mendel’s hypotheses regarding gametes?

Revolt · Accepted Answer

A gamete carries one allele for a gene.

Question 10

Gregor Mendel’s research formed the basis of the field of

Revolt · Accepted Answer

genetics.

Introduction to Genetics Answers

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