Chapter 6, Section 2 B Question Preview (ID: 2875)


Genes And Gene Technology: How DNA Works. TEACHERS: click here for quick copy question ID numbers.

___ allows scientists to transfer genes for one organism to another
a) DNA fingerprinting
b) Selective breeding
c) Genetic engineering
d) none of the answers

___ is a tool for tracing a genetic trait through generations of a family.
a) A pedigree
b) A Punnett square
c) A family tree
d) none of the answers

Examples of chemical ___ includes asbestos and chemicals found in cigarette smoke.
a) ribosomes
b) mutations
c) mutagens
d) none of the anwers

If a mutation occurs in the DNA of ___ cells, it can be passed from one generation to the next.
a) brain
b) sex
c) heart
d) muscle

If a change occurs in a base sequence of a DNA, it might cause a different ___ to be substituted in a protein.
a) nucleic acid
b) enzyme
c) amino acid
d) ribosome

Sickle cell anemia is a disease that affects red blood cells. This is the result of a mutation called a ___.
a) deletion
b) substitution
c) insertion
d) omission

One effect of the ___ that is responsible for sickle cell disease is that sickled cells are not as good as normal cells at carrying oxygen through the body.
a) mutation
b) mutagen
c) protein
d) enzyme

A disease that occurs when a child inherits a defective gene from parents who do not suffer from the disease in a ___ disorder.
a) obsessive
b) recessive
c) regressive
d) intensive

In a pedigree, a solid square or circle indicates that the person ___.
a) does not have a certain trait
b) is a carrier of a certain trait
c) has a certain trait
d) has the disease

In a pedigree, a half filled square or circle indicates that the person ___.
a) doess not have certain trait
b) is a carrier of a certain trait
c) has a certain trait
d) has the disease

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