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Genes, DNA & Mutations
By Brendan Riley
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Last updated about 1 year ago
10 questions
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Question 1
1.
Which statement best describes the structure of a DNA molecule
DNA is single-stranded and straight molecule
DNA is a double-stranded molecule that looks like a spiral staircase
DNA is a double stranded molecule that is straight like a ladder
DNA is a single-stranded and curly molecule
Question 2
2.
A portion of DNA that codes for a protein, that causes a trait, is a
Gene
Chromosome
Deoxyribose
Phosphate
Question 3
3.
Chromosomes contain...
cells
DNA
traits
nucleus
Question 4
4.
Mutations are random.
True
False
Question 5
5.
All mutations are harmful to an organism or species.
True
False
Question 6
6.
What is mutation?
a result of meiosis
a change in the base sequence of DNA
a result of mitosis
Question 7
7.
Genes contain the instructions for assembling
chromosomes and then traits
amino acids and then proteins
traits and then chromosomes
proteins and then amino acids
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Question 10
10.
Inherited traits are . . .
not in the DNA
can't be passed on to offspring
are coded in your DNA
learned
Question 8
8.
Based on looking at the diagram, where do chromosomes live.
The live on the cell membrane
They live on the outside of the cell
They live in the nucleus of a cell
They live in the cytcoplasm only
Question 9
9.
What does a chromsome unravel to be...
segments of gooey cytoplasm
segments of DNA called genes
strands of cytokines
strans of living components in the cell
