Question 1

Nutritional intervention can completely suppress the effects of the PKU allele.

Accepted Answer

A) True 
 B)False

Question 2

Linkage refers to __________.

Accepted Answer

A)   genes that are on the same chromosome
B)   alleles that appear on different chromosomes but are linked to the same trait
C)   several traits that are linked to the same genes
D)   none of theseE) A) and C)
F) B) and C)

Question 3

Explain the mechanics of the ABO blood system. What is the relationship between genotype and phenotype within this system? Be sure to include the terms recessive, dominant, and codominant.

Accepted Answer

The ABO blood system is a classification...

Question 4

Early researchers such as Mendel and Bateson learned about inheritance __________.

Accepted Answer

A)   by looking at the genes themselves
B)   by replicating small sequences of DNA
C)   by studying human
D)   none of theseE) A) and B)
F) All of the above

Question 5

The independent assortment of genes on the same chromosome is impossible.

Accepted Answer

A) True 
 B)False

Question 6

Pleiotropy is best defined as __________.

Accepted Answer

A)   one gene, one effect
B)   one gene having multiple phenotypic effects
C)   heritability
D)   the effect of the environment on gene actionE) A) and B)
F) C) and D)

Question 7

Most scientists would agree that heritability plays no role in IQ test score variability.

Accepted Answer

A) True 
 B)False

Question 8

What is PKU and how is it inherited? Explain how PKU is as much a result of environment as it is of genetics.

Accepted Answer

PKU, or phenylketonuria, is a genetic di...

Question 9

Genetic mutations can never be good.

Accepted Answer

A) True 
 B)False

Question 10

Dihybrid cross experiments were essential to __________.

Accepted Answer

A)   Mendel's Law of Segregation
B)   Mendel's Law of Independent Assortment
C)   discovering the particulate nature of inheritance in general
D)   discovering the nature of dominant and recessive allelesE) None of the above
F) A) and D)

Question 11

Which group consistently scores highest on IQ tests?

Accepted Answer

A)   American whites
B)   American blacks
C)   American Asians
D)   none of theseE) B) and D)
F) None of the above

Question 12

Which of the following is ??NOT an X-linked disorder?

Accepted Answer

A)   red-color blindness
B)   green-colorblindness
C)   Huntington's disease
D)   hemophiliaE) A) and B)
F) All of the above

Question 13

Females are usually only carriers of X-linked disorders.

Accepted Answer

A) True 
 B)False

Question 14

Using obesity as an example, explain the complex relationship between genes, environments and phenotypes.

Accepted Answer

Obesity is a complex condition that is i...

Question 15

Mendel's Law of Independent Assortment indicates that __________.

Accepted Answer

A)   dominant alleles suppress recessive alleles
B)   inheritance is governed by discrete particles
C)   segregating pairs of unit factors assort independently
D)   chromosomes randomly segregate into sex cellsE) A) and B)
F) B) and C)

Question 16

Environmental factors play little to no role in determining obesity.

Accepted Answer

A) True 
 B)False

Question 17

Determining heritability provides direct insight into individual genetic mechanisms.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following best describes Mendel's Law of Segregation?

Accepted Answer

A)   dominant alleles suppress recessive alleles
B)   inheritance is governed by discrete particles
C)   segregating pairs of unit factors assort independently
D)   chromosomes randomly segregate into sex cellsE) C) and D)
F) A) and B)

Question 19

The Nazi Party's "final solution" was an example of __________.

Accepted Answer

A)   positive eugenics
B)   negative eugenicsC) A) and B)
D) undefined

Question 20

In some cases, the __________ interacts with factors in the environment to create a __________.

Accepted Answer

A)   phenotype, genotype
B)   allele, regulatory region
C)   genotype, phenotype
D)   protein, genotypeE) None of the above
F) B) and C)

Exam 3: Genetics: From Genotype to Phenotype

Explain the mechanics of the ABO blood system. What is the relationship between genotype and phenotype within this system? Be sure to include the terms recessive, dominant, and codominant.

Correct AnswerAnswered by ExamLex AIThe ABO blood system is a classification...View AnswerShow Answer

The Nazi Party's "final solution" was an example of __________.

Correct AnswerverifiedShow Answer

Which group consistently scores highest on IQ tests?

Correct AnswerverifiedShow Answer

Mendel's Law of Independent Assortment indicates that __________.

Correct AnswerverifiedShow Answer

Early researchers such as Mendel and Bateson learned about inheritance __________.

Correct AnswerverifiedShow Answer

Determining heritability provides direct insight into individual genetic mechanisms.

Correct AnswerverifiedShow Answer

What is PKU and how is it inherited? Explain how PKU is as much a result of environment as it is of genetics.

Correct AnswerAnswered by ExamLex AIPKU, or phenylketonuria, is a genetic di...View AnswerShow Answer

Linkage refers to __________.

Correct AnswerverifiedShow Answer

The independent assortment of genes on the same chromosome is impossible.

Correct AnswerverifiedShow Answer

Pleiotropy is best defined as __________.

Correct AnswerverifiedShow Answer

In some cases, the __________ interacts with factors in the environment to create a __________.

Correct AnswerverifiedShow Answer

Using obesity as an example, explain the complex relationship between genes, environments and phenotypes.

Correct AnswerAnswered by ExamLex AIObesity is a complex condition that is i...View AnswerShow Answer

Which of the following best describes Mendel's Law of Segregation?

Correct AnswerverifiedShow Answer

Environmental factors play little to no role in determining obesity.

Correct AnswerverifiedShow Answer

Dihybrid cross experiments were essential to __________.

Correct AnswerverifiedShow Answer

Females are usually only carriers of X-linked disorders.

Correct AnswerverifiedShow Answer

Most scientists would agree that heritability plays no role in IQ test score variability.

Correct AnswerverifiedShow Answer

Which of the following is ??NOT an X-linked disorder?

Correct AnswerverifiedShow Answer

Nutritional intervention can completely suppress the effects of the PKU allele.

Correct AnswerverifiedShow Answer

Genetic mutations can never be good.

Correct AnswerverifiedShow Answer

Correct Answer
Answered by ExamLex AI
The ABO blood system is a classification...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
PKU, or phenylketonuria, is a genetic di...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

In some cases, the interacts with factors in the environment to create a .

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Obesity is a complex condition that is i...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified