Chapter 6, Section 2 A Question Preview (ID: 2872)


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

Most genetic disorders, such as sickle cell anemia, are due to a ___.
a) pedigree
b) recessive gene
c) dominant gene
d) ribosome

Genetic engineering is currently used to ___.
a) genetically alter plants
b) repair damaged genes
c) manufacture proteins
d) All of the answers

Which of the following could cause sickle cell anemia?
a) a change in the order of bases in a person's DNA
b) a virus
c) a bacterium
d) air pollution

Which of the following is NOT a step in making a protein?
a) copies of DNA are taken to the cytoplasm
b) transfer molecules deliver amino acids to the nucleus
c) amino acids are joined together at the ribosome to make a protein
d) a copy of the DNA is fed through the ribosome

The human body contains about 50,000 different kinds of ___, which are made of amino acids.
a) bases
b) genes
c) traits
d) proteins

The factory through which the protein assembly line is fed is the ___.
a) cell wall
b) ribosome
c) nucleus
d) cell membrane

In order to make a protein, extra amino acids must be brought from the ___ to join with the complementary copy of the DNA strand.
a) cytoplasm
b) ribosome
c) nucleus
d) cell membrane

An original base sequence of DNA, AAACCCGGG, changes to AAACACGGG. This mutation is known as a ___.
a) deletion
b) insertion
c) substitution
d) omission

An original base sequence of DNA, AAACCCGGG, changes to AAACCGGG. This mutation is known as a ___.
a) deletion
b) insertion
c) substitution
d) omission

A mutation in DNA could result in ___.
a) a genetic disorder
b) death
c) no change at all
d) all of the answers

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