Bio 102 Name:___________________________ 1
Spring 2026 Exam 1
Section 1 - Multiple Choice (1 points each)
Pick the correct answer
1 Separation of the sister chromatids is a characteristic of which stage of mitosis?
A Metaphase
B Anaphase
C Prophase
D Prometaphase
2 X-Linked recessive traits in humans are observed ___________________.
A in more males than females
B in more females than males
C in males and females equally
D in different distributions depending on the species
3 Polyploid crops, such as coffee and strawberries tend to produce _____________________.
A smaller yields
B more uniformity
C larger yields
D more variety
Abnormalities in the number of X chromosomes tends to have milder phenotypic effects than the same abnormalities in
4 autosome because____________________.
A X inactivation
B synapsis
C deletions
D nonhomologous recombination
5 The observable traits expressed by an organisms are described as its ________________.
A Phenotype
B genotype
C alleles
D zygote
6 A diploid multicellular life-cycle stage that gives rise to haploid cells by meiosis is called a __________.
A gametophyte
B spore
C sporophyte
D gamete
7 Which recombination frequency corresponds to perfect linkage and violates the law of independent assortment?
A 0
B 0.25
C 0.5
D 0.75
8 At which stage of meiosis are sister chromatids separated from each other?
A Anaphase II
B Anaphase I
C Prophase I
D Prophase II
9 Chromosomes are duplicated during what stage of the cell cycle?
A Prometaphase
B S Phase
C G1 Phase
D Prophase
In a mating between two individuals that are heterozygous for a recessive lethal allele that is expressed in utero, what
10 genotypic ratio (homozygous dominant : heterozygous : homozygous recessive) would you expect to observe in the
offspring?
A 1:2:1
B 3:1:1
C 1:2:0
D 0:2:1
Spring 2026 Exam 1
Section 1 - Multiple Choice (1 points each)
Pick the correct answer
1 Separation of the sister chromatids is a characteristic of which stage of mitosis?
A Metaphase
B Anaphase
C Prophase
D Prometaphase
2 X-Linked recessive traits in humans are observed ___________________.
A in more males than females
B in more females than males
C in males and females equally
D in different distributions depending on the species
3 Polyploid crops, such as coffee and strawberries tend to produce _____________________.
A smaller yields
B more uniformity
C larger yields
D more variety
Abnormalities in the number of X chromosomes tends to have milder phenotypic effects than the same abnormalities in
4 autosome because____________________.
A X inactivation
B synapsis
C deletions
D nonhomologous recombination
5 The observable traits expressed by an organisms are described as its ________________.
A Phenotype
B genotype
C alleles
D zygote
6 A diploid multicellular life-cycle stage that gives rise to haploid cells by meiosis is called a __________.
A gametophyte
B spore
C sporophyte
D gamete
7 Which recombination frequency corresponds to perfect linkage and violates the law of independent assortment?
A 0
B 0.25
C 0.5
D 0.75
8 At which stage of meiosis are sister chromatids separated from each other?
A Anaphase II
B Anaphase I
C Prophase I
D Prophase II
9 Chromosomes are duplicated during what stage of the cell cycle?
A Prometaphase
B S Phase
C G1 Phase
D Prophase
In a mating between two individuals that are heterozygous for a recessive lethal allele that is expressed in utero, what
10 genotypic ratio (homozygous dominant : heterozygous : homozygous recessive) would you expect to observe in the
offspring?
A 1:2:1
B 3:1:1
C 1:2:0
D 0:2:1
