Genetics And DNA Quiz Yr 10 Science
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- 1.
- A.
Short strands of DNA are contained in chromosomes inside the nucleus of a cell.
- B.
Every DNA nucleotide contains a sugar, a phosphate group, and a nitrogen base.
- C.
DNA consists of one strand of nucleotides joined by hydrogen bonds.
- D.
The long strands of nucleotides are twisted into a double helix.
- 2.Molecules of DNA are composed of long chains of
- A.
Amino acids.
- B.
Fatty acids.
- C.
Monosaccharides.
- D.
Nucleotides.
- 3.Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
- 4.DNA is found in?
- A.
All living things
- B.
Only humans
- C.
Only philosalraptors
- 5.All human BODY CELLS contain this many chromosomes
- A.
23
- B.
46
- C.
8
- D.
45
- 6.In a base pair, C stands for what?
- A.
Cooty
- B.
Creator
- C.
Cytosine
- 7.Sperm cells and egg cells are examples of
- A.
Body cells
- B.
Meiosis
- C.
Gametes
- D.
DNA
- 8.The name of the large molecule contained in chromosomes is called
- A.
RNA
- B.
DEA
- C.
DVD
- D.
DNA
- 9.Where are chromosomes located inside the cell?
- A.
The ribosome
- B.
The nuclear membrane
- C.
The cell wall
- D.
The nucleus
- 10.Different versions of the same gene are known as
- A.
Centromeres
- B.
Alleles
- C.
Chromosomes
- D.
Gametes
- 11.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
- 12.Having two of the same genes for a certain trait is called
- A.
Heterozygous
- B.
Homozanious
- C.
The same
- D.
Homozygous
- 13.The type of gene that always shows itself is called a
- A.
Powerful gene
- B.
Dominant gene
- C.
Homozygous gene
- D.
Recessive gene
- 14.
- A.
A gene symbol
- B.
Karyotype
- C.
A Punnett Sguare
- D.
A pie chart
- 15.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
- 16.What are the chances of an offspring being a boy or a girl?
- A.
25%
- B.
33%
- C.
50%
- D.
75%
- 17.A recessive gene always shows itself.
- A.
True
- B.
False
- 18.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
- 19.How many pairs of chromosomes are in a human body cell?
- A.
46
- B.
12
- C.
23
- D.
8
- 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.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
- 22.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
- 23.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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