Chapter 37: Genetics and Heredity

Chapter 37: Genetics and Heredity

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

Chapter 37-A: Genetics and Heredity

 

Test Bank

 

TRUE/FALSE

 

1. Gregor Mendel proved that “independent units” are responsible for the inheritance of biological traits.

 

ANS:   T                      DIF:    Memorization                                     REF:    Page 1132

TOP:    The Science of Genetics

 

2. Exons are removed from transcribed RNA to form the functional mRNA strand.

 

ANS:   F                      DIF:    Memorization                                     REF:    Page 1132

TOP:    Mechanisms of Gene Function

 

3. Every cell in the human body, both male and female, contains 46 chromosomes.

 

ANS:   F                      DIF:    Memorization                                     REF:    Page 1135

TOP:    Meiosis

 

4. In the human, the 22 pairs of autosomes always appear to be nearly identical to each other.

 

ANS:   T                      DIF:    Memorization                                     REF:    Page 1135

TOP:    Meiosis

 

5. The principle of independent assortment states that each gamete formed is likely to have the same set of 23 chromosomes.

 

ANS:   F                      DIF:    Memorization

REF:    Page 1135|Page 1136                         TOP:    Principle of Independent Assortment

 

Chapter 37-B: Genetics and Heredity

 

Test Bank

 

MULTIPLE CHOICE

 

1. Gregor Mendel began the scientific study of genetics in the:

a.	1760s.
b.	1800s.
c.	1860s.
d.	1920s.

 

ANS:   C                     DIF:    Memorization                                     REF:    Page 1132

TOP:    The Science of Genetics

 

2. Each DNA molecule may be called a:

a.	chromatin strand.
b.	chromosome.
c.	gene.
d.	Both A and B are correct.

 

ANS:   D                     DIF:    Memorization                                     REF:    Page 1132

TOP:    Mechanisms of Gene Function

 

3. Which of the following is not a true statement?

a.	The gametes contain only 23 chromosomes.
b.	A zygote has a haploid number of chromosomes.
c.	The pair of sex chromosomes may not match.
d.	The 22 pairs of autosomes always appear to be nearly identical to each other.

 

ANS:   B                     DIF:    Memorization                                     REF:    Page 1135

TOP:    Meiosis

 

4. The principle of independent assortment states that:

a.	each offspring from a single set of parents is very likely to be genetically unique.
b.	genetic variation is likely to occur during reproduction.
c.	after meiosis, each gamete produced is likely to have a different set of 23 chromosomes.
d.	all of the above are true.

 

ANS:   D                     DIF:    Memorization                                     REF:    Page 1135

TOP:    Distribution of Chromosomes to Offspring

 

5. Crossing over is the process during which:

a.	similar gametes fuse together.
b.	dissimilar gametes fuse together.
c.	meiosis stops after meiosis I.
d.	pairs of matching chromosomes line up along the equator of the cell and exchange genes with one another.

 

ANS:   D                     DIF:    Memorization                                     REF:    Page 1136

TOP:    Distribution of Chromosomes to Offspring