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WorksheetsDMD Lessons 4 and 5 - Inheritance and Genes Review
Total questions: 23
Worksheet time: 13mins
An observable characteristic that is determined by the expression of proteins
trait
gene
allele
DNA
A version or variation of a gene
(GENE= hair color, VERSIONS: blonde hair, brown hair, black hair, etc)
trait
gene
allele
DNA
Small segments within chromosomes that have the ability to code for specific proteins, which determine traits:
gene
allele
chromosome
chromatid
Chromosomes are made of
a single strand of DNA
multiple strands of DNA
multiple strands of RNA
amino acids and proteins
Human somatic cells have _______ pairs of chromosomes, for a total of _______ chromosomes.
10, 20
25, 100
23, 46
46, 92
Where is DNA located?
in your body
in cell
cell's nucleus
What sex has 22 pairs of autosomes and an X and a Y sex chromosome?
male
female
The fertilized egg is termed a/an _____.
gamete, which contains half the DNA
allele, which contains genes
zygote, which contains 23 pairs of chromosomes, one pair from mom and another pair from dad (46 total)
zygote, which contains 23 chromosomes from one parent
Sh’qira reads an article about a family of wildcats. One of them had a mutation for tooth sharpness. Which of these statements about the wildcat with the mutation is true?
There must have been a change in the wildcat’s genes.
The wildcat must have sharper teeth.
There will be no change to the wildcat’s teeth.
The wildcat must have less sharp teeth.
Two rabbits have different parents. One rabbit has ears that flop over, and the other rabbit has ears that stand straight up. Why do the rabbits have ears with different shapes?
The rabbits have different alleles of the gene for ear shape. The genes are only standing straight up in the cells of one rabbit’s ears.
The rabbits have different alleles of the gene for ear shape, which instruct for different proteins that connect in different ways to make different ear shapes.
Each rabbit has a different ear shape because offspring from different parents will always have different ear shapes.
There are two bears that both have the same proteins for ear shape in their cells. The bears have different parents. What can you say about the bears' ear shape?
They will have the same ear shape since their proteins for ear shape are the same so the proteins will connect in the same way.
They will have the same ear shape since all bears have the same ear shape.
They will have different ear shapes because even with the same proteins for ear shape, the proteins can connect in different ways.
They will have different ear shapes since only offspring from the same parents have the same ear shape.
Two fruit flies have different parents. One fruit fly has orange eyes while the other has red eyes. Why do the fruit flies have different eye colors?
Each fruit fly has a different eye color because offspring from different parents will always have different eye colors.
The fruit flies have different versions of the gene for eye color, which instruct for different proteins that connect in different ways to make different eye colors.
The fruit flies have different versions of the gene for eye color, and the genes are different colors in each fruit fly’s eyes.
Henry is studying a family of tree frogs that have poisonous skin, and he finds one frog with a mutation for the poison feature. Which of these statements about the tree frog with the mutation is true?
There will be no change to the frog’s poison.
The frog must be more poisonous than other frogs.
The frog must be less poisonous than other frogs.
There must have been a change in the frog’s genes.
What determines the code, or information, of a DNA molecule?
the shape (structure) of the letters
the order (sequence) of the letters
the color of the letters
the frequency (number) of letters
What process is shown in the image?
Fertilization
Mitosis
Evolution
Mutation
How many chromosomes do gametes have?
23
46
92
How many chromosomes does a zygote have?
23
46
92
