Module 4 Review

I understand that I need to have completed all previous lessons in order to be able to take the Module 4 exam.

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Which type of biotechnology is used by scientists when they alter the DNA of a plant to make it grow faster?

• Artificial selection because it always produces desirable traits

• Genetic engineering because the genes of the plants were modified

• Genetic engineering because it is always helpful to society

• Artificial selection because the DNA of the plant was changed

Tags

NGSS.HS-LS3-2

What is the likely advantage of growing a genetically modified variety of tomato that remains fresh over several days?

• Disease-causing pests may never be able to attack such a variety of tomato.

• When consumed it would provide more nutrients than the regular variety.

• When consumed it would improve the quality of life of people with genetic disorders.

• Post-harvest losses due to delayed transportation would be reduced.

A genetically engineered corn plant is approved for agricultural use. The plant produces pollen that can make its own toxins. These toxins protect the corn plant against pests and no longer require the application of chemical pesticide. What is a likely impact on the farmer of growing such a variety of corn?

• The farmer's expenses for pest control would increase due to an increase in bee population.

• The financial costs for the farmer would be lowered since less crops would be lost to pests.

• The farmer may be held responsible for increasing chemical pollution.

• The financial costs for the farmer would be lowered since more crops would be lost to pests.

Tags

NGSS.HS-LS2-7

Which of the following is true about the offspring of an organism X that reproduces asexually?

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  The offspring would be identical in size to X.

• The DNA of one offspring would be different than the other.

• Two offspring would show different traits.

• The offspring would have identical DNA as X.

Tags

NGSS.MS-LS3-2

In fruit flies the allele for long wings (L) is dominant and the allele for short wings (l) is recessive. What is the likely genotype of a fruit fly with long wings?

• Only ll

• Either LL or Ll

• Either Ll or ll

• Only LL

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

I am sooo looking forward to Spring!

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Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-6

In pea plants the allele for round seeds (R) is dominant and the allele for wrinkled seeds (r) is recessive. Under what conditions would we observe wrinkled seeds in a pea plant?

• When a plant has a heterozygous allelic pair of the gene for seed shape

• When the plant has a genotype RR

• When the plant inherits a dominant allele from both parents

• When the plant inherits a recessive allele from both parents

What tool uses the genotypes of parents to predict the possibility of the phenotypes of the offspring?

• allelic pair

• a half-filled circle

• a completely filled circle

• a Punnett square

What does a completely filled circle represent on a pedigree chart?

• A female with a disease

• A male with a disease

• A female carrier of a disease

• A male carrier of a disease