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GENETICS AND HEREDITY
Test Description: This is review game that will help you review for you genetics test, quiz, or new york state regents.
Instructions: Answer all questions to get your test result.
1) 1. A child has brown hair and brown eyes. His father has brown hair and blue eyes. His mother has red hair and brown eyes. The best explanation for the child having brown hair and brown eyes is that
A
gene expression must change in each generation so evolution can occur
B
a gene mutation occurred that resulted in brown hair and brown eyes
C
the child received genetic information from each parent
D
cell from his mother’s eyes were present in the fertilized egg
2) All cells in an embryo have the same DNA. However, the embryonic cells form organs, such as the brain and the kidneys, which have very different structures and functions. These differences are the result of
A
having two types of cells, one type from each parent
B
new combinations of cells resulting from meiosis
C
rapid mitosis causing mutations in embryo cells
D
certain genes being expressed in some cells and not in others
3) A mutation changes a gene in a cell in the stomach of an organism. This mutation could cause a change in
A
both the organism and its offspring
B
its offspring, but not the organism itself
C
the organism, but not its offspring
D
neither the organism nor its offspring
4) The DNA of a human cell can be cut and rearranged using
A
electrophoresis
B
enzymes
C
horomones
D
a scalpel
5) A boy inherits genes for tallness, but his growth is limited as a result of poor nutrition. This is an example of
A
expression of a hidden trait
B
a characteristic controlled by more than one pair of genes
C
environmental influence on gene expression
D
an inherited disorder
6) Chromosome can be described as
A
coiled strands of genetic material
B
reproductive cells composed of molecular bases
C
large molecules that have only one function
D
folded chains of bonded glucose molecules
7) Cells that develop from a single zygote all contain identical DNA molecules. However, some of these cells will develop differently because
A
only the DNA in certain cells will replicate
B
DNA is functional in only 10% of the cells of the body
C
different groups of cells containing the DNA may be exposed to different environmental conditions
D
some of the DNA in some of the cells will be removed by chemical reactions
8) Mustard gas removes guanine (G) from DNA. For developing embryos, exposure to mustard gas can cause serious deformities because guanine
A
stores the building blocks of proteins
B
supports the structure of ribosomes
C
produces energy for genetic transfer
D
is part of the genetic code
9) 29. In sexually reproducing organisms, mutations can be inherited if they occur in
A
the sperm, only
B
the egg, only , only
C
any body cell of either the mother or the father
D
either the egg or the sperm
10) One disadvantage of a genetic mutation in a human skin cell is that it
A
may result in the production of a defective protein
B
can alter the rate of all the metabolic processes in the human
C
can lead to a lower mutation rate in the offspring of the human
D
may alter the sequence of simple sugars in insulin molecules
*select an answer for all questions
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