Genetic Variation Test
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Genetic Variation and DNA Test
- 1.All human BODY CELLS contain this many chromosomes
- A.
23
- B.
46
- C.
8
- D.
45
- 2.Each GAMETE contains this many chromosomes as a body cell
- A.
Twice as many
- B.
Half as many
- C.
The same amount
- D.
1/3 as many
- 3.Sperm cells and egg cells are examples of
- A.
Body cells
- B.
Meiosis
- C.
Gametes
- D.
DNA
- 4.The name of the large molecule contained in chromosomes is called
- A.
RNA
- B.
DEA
- C.
DVD
- D.
DNA
- 5.What does a DNA structure look like?
- A.
A twisted ladder
- B.
A braided rope
- C.
A long stick
- D.
A twizzler
- 6.Where are chromosomes located inside the cell?
- A.
The ribosome
- B.
The nuclear membrane
- C.
The cell wall
- D.
The nucleus
- 7.Different versions of the same gene are known as
- A.
Centromeres
- B.
Alleles
- C.
Chromosomes
- D.
Gametes
- 8.Heterozygous means
- A.
Having two of the same genes for a certain trait
- B.
Having a zygous that is hetero
- C.
Having two genes for a trait that are different
- D.
None of the above
- 9.Having two of the same genes for a certain trait is called
- A.
Heterozygous
- B.
Homozanious
- C.
The same
- D.
Homozygous
- 10.The type of gene that always shows itself is called a
- A.
Powerful gene
- B.
Dominant gene
- C.
Homozygous gene
- D.
Recessive gene
- 11.A chart that shows the possible gene combinations is called a
- A.
A gene symbol
- B.
Karyotype
- C.
A Punnett Sguare
- D.
A pie chart
- 12.Genes for a trait that are hidden when the dominant gene is present are called
- A.
A wimpy gene
- B.
Heterozygous
- C.
Recessitative jeans
- D.
Recessive gene
- 13.What are the chances of an offspring being a boy or a girl?
- A.
25%
- B.
33%
- C.
50%
- D.
75%
- 14.
- A.
Codominance
- B.
Incomplete dominance
- C.
Complete dominance
- D.
A goofy looking offspring
- 15.When alleles from each parent both appear in an offspring, it is called
- A.
Complete dominance
- B.
Codominance
- C.
Incomplete dominance
- D.
Coordination
- 16.A recessive gene always shows itself.
- A.
True
- B.
False
- 17.If the trait for the fur pattern on a dog were solid fur(f) and spotted fur(F), a homozygous female with solid fur and a homozygous male with spotted fur have a 25% chance of having an offspring with solid fur.
- A.
True
- B.
False
- 18.
- A.
46
- B.
12
- C.
23
- D.
8
- 19.
- 20.Male organisms have
- A.
Two x chromosomes
- B.
Two y chromosomes
- C.
One x and one z chromosome
- D.
One x and one y chromosome
- 21.When a woman has a gene for a disorder, but does not show any sign of that disorder, she is called a
- A.
Weirdo
- B.
Carrier
- C.
Hemophiliac
- D.
Sex-linked trait
- 22.Sex-linked traits are not passed through the x and y chromosomes.
- A.
True
- B.
False
- 23.A larkey that is homozygous for red eyes(EE) mates with a larkey that is homozygous for gray eyes(ee). What percent chance will their offspring have gray eyes?
- A.
25%
- B.
50%
- C.
75%
- D.
None of the above
- 24.FF-striped fur, Ff- solid fur, ff- spotted fur Two larkeys with solid fur mate. Which fur will their offspring most likely have?
- A.
Striped
- B.
Solid
- C.
Spotted
- 25.A woman that is a carrier of colorblindness mates with a man that is colorblind. What percent chance will their offspring actually be colorblind?
- A.
25%
- B.
50%
- C.
75%
- D.
None of the above
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