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WorksheetsHuman Heredity Review
Total questions: 22
Worksheet time: 15mins
According to this karyotype, what sex chromosomes does this individual have?
XX
XY
Pair 13
Pair 21
According to this karyotype, what sex is the individual pictured here?
Male
Female
It's impossible to tell from a karyotype alone
What do we collectively call the first 22 pairs of chromosomes?
Gametes
Somatosomes
Sex chromosomes
Autosomes
How many chromosomes does a typical human cell nucleus contain?
(a)
What chromosomal abnormality is pictured here?
There's only one X chromosome rather than 2
One of the chromosomes in pair 2 appears mutated
There's an extra chromosome 9
It's impossible to tell from a karyotype alone
Which of the following options would need to fuse to produce a male embryo? Choose TWO options.
Sperm (X)
Sperm (Y)
Egg (X)
Egg (Y)
Choose the TWO correct blood types for the following individuals: Mom has type A blood and Dad has type O blood.
ii
IAIB
IAi
IBIB
If Mom has type A blood (IAi) and Dad has type O blood (ii), what are the chances that they have a child with type A blood?
0%
25%
50%
100%
A man who is homozygous for type A blood (IAIA) and a woman who has type O blood (ii) want to have a baby. Choose ALL blood types that their kids could have.
Type A
Type B
Type AB
Type O
Observe the image. In the presence of A antigens, anti-A serum causes clotting. In the presence of B antigens, anti-B serum causes clotting. Which antigens are present on Plate 4?
A
B
A & B
none
Observe the image. In the presence of A antigens, anti-A serum causes clotting. In the presence of B antigens, anti-B serum causes clotting. Which blood type is found in Plate 3?
A
B
AB
O
Based on the shading, which type of trait does this pedigree track?
Dominant
Recessive
Codominant
Sex-linked
If this pedigree is showing the passage of a dominant trait, which of the following would be the correct genotype for Person I-2?
BB
Bb
bb
How are person I-2 and II-4 related?
Person I-2 is her mother
Person I-2 is her grandmother
Person I-2 is her mother-in-law
Person I-2 is her aunt
How many generations are shown in this pedigree?
(a)
A male with normal vision (XNY) and a carrier female (XNXn) marry and have children. Create the Punnett square for their offspring. What are the chances of them having a colorblind child?
0%
25%
50%
100%
If an individual has a sex-linked disorder, then it is most likely a mutation on which chromosome?
Chromosome #4
Chromosome #21
The Y chromosome
The X chromosome
Why is Type O blood (at the bottom) able to be received by everyone during transfusions?
Its blood cells are the smallest
People with type O blood don't produce antibodies
Type O blood has no antigens and so doesn't trigger an immune response
It is the most ancient type of blood that all other blood types evolved from
Which of the following could be a correct blood type for an individual with B- blood?
IBiRh-Rh-
IBIBRh+Rh-
IAIBRh-Rh-
iiRh+Rh-
What's the purpose of a pedigree?
To predict the outcome of two parents' offspring
To determine the amount of chromosomes at the end of meiosis
To track the passage of a trait
To measure how much DNA is inside of a cell
Why are men more likely to inherit sex-linked disorders like colorblindness?
Men have a Y chromosome (which is where most disorders are located)
Men only have one X chromosome (and so don't have a backup)
Men inherit more DNA from their moms
Men inherit more DNA from their dads
Choose the combination that is INCORRECT when considering colorblindness:
XNY - male with normal vision
XnY - male with colorblindness
XNXN - female with normal vision
XNXn - female with colorblindness
