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


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___ 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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