Pre-Test in Genetics
Quiz by Rosalina T. Alonzo
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- Q1
If a mother’s blood type is heterozygous A and father is AB what is/are the possible blood type/s of the offspring that they will produce?
B
A, B, AB
A
AB
300sS9LT -Id -29 - Q2
Hereditary information is found in a cell’s
Membranes
Chromosomes
Cytoplasm
Chloroplasts
120sS9LT -Id -29 - Q3
If a strand of a DNA molecule has the sequence GTCCAC, what would be the sequence of the complementary section of DNA?
GTCCAC
CAGGTG
CTGGAG
GACCTC
120sS9LT -Id -29 - Q4
A yellow flower is crossed to a red flower. What will be the phenotype of the offspring if the inheritance pattern is incomplete dominance?
Orange
Yellow
Red
Spotted yellow-red
120sS9LT -Id -29 - Q5
A curly-haired woman marries a man with straight hair. If this couple produced an offspring that has wavy hair, what pattern of inheritance does the child acquire?
Codominance
Sex-linked
Complete dominance
Incomplete Dominance
120sS9LT -Id -29 - Q6
A spotted red-white flower is crossed with a red flower. What is the probability of producing a white flower?
0%
50%
25%
100%
300sS9LT -Id -29 - Q7
A spotted red-white flower is crossed with a red flower. What is the probability of producing a red flower?
0%
25%
50%
100%
300sS9LT -Id -29 - Q8
Sex-linked traits appear more often in males than in females because
females with a sex-linked trait will die
males are produced in greater numbers
males have only one X chromosome
sex-linked traits are carried on the Y chromosome
120sS9LT -Id -29 - Q9
Hemophilia is an X-linked recessive trait. Consider a cross between a woman who is a carrier and a man who suffers from hemophilia. Which of the following statements is FALSE?
Half of the daughters of this cross are predicted to be hemophiliacs
All sons of these parents will be hemophiliac.
Sons who suffer from hemophilia received the hemophilia allele from their mother
25% of the daughters are predicted to be carrier of hemophilia
300sS9LT -Id -29 - Q10
Normal humans have
22 autosomes and an X chromosome
22 autosomes and a Y chromosome
46 chromosomes
23 autosomes
120sS9LT -Id -29 - Q11
Which combination of sex chromosomes results in a male human being?
XX
XY
YY
XO
120sS9LT -Id -29 - Q12
Baldness is a sex influenced trait where the genders expressed the trait differently. Which of the following genotypes indicates a bald male?
XXBB
XXBb
XYbb
XYBb
120sS9LT -Id -29 - Q13
A person whose genotype is XXBb is a
bald female
non-bald male
non-bald female
bald male
120sS9LT -Id -29 - Q14
Traits such as breast formation in females or beard in males are referred to as
sex-linked dominant traits
sex-limited traits
sex-linked recessive traits
sex-influenced traits
120sS9LT -Id -29 - Q15
Which of the following is TRUE about sex-limited traits?
they are autosomal or found in body chromosomes
they are expressed in both genders
all of the above
they are found in both X and Y chromosomes
120sS9LT -Id -29
