Genetic Variation Test

25 Questions | By Chasewebber | Last updated: Mar 22, 2022 | Total Attempts: 4516

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Genetic Variation and DNA Test

Questions and Answers

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.

When traits from the parents blend together in the offspring, it is called
- 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.

How many pairs of chromosomes are in a human body cell?
- A.
  
  46
- B.
  
  12
- C.
  
  23
- D.
  
  8
19.

The gender of an offspring is determined by the _____________.
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