BIO 111 Exam Questions and Answers | 2026
Update | 100% Correct.
Deletions and substitutions are two types of point mutations. Which is more likely to
cause mistranslations of proteins?
Deletions are more likely to cause mistranslations of proteins because they shift the
reading frame and cause downstream amino acids to be changed.
___________________ reproduction require that _________________ gamete be
produced through the process of meiosis. This is important because at fertilization
of the _______________ number is restored in the developing offspring.
Sexual; haploid; diploid
Which of the following statements about mutations is false?
Mutations always decrease an organisms fitness
In the case of Mendels peas, a single gene with two alleles determined the height of
the plant. However, in humans is adult height is influenced by many genes and
multiple alleles trait s such as human height is said to be
Polygenetic
Healthy Individuals may have just one sex chromosome as long as it is an X
chromosome. Why is this the case?
, The X chromosome has a full complement of genetic material, much of which is vital to
life; the Y chromosome is missing the most of these genes.
What are the possible genetic combinations in the gametes produced by a parent
with the genotype, AaBb?
AB, Ab, aB, ab
The difference in sizes between male and female gametes results from two unequal
divisions of _______________ in female gamete development.
Cytoplasm
In peas, tall plants (T) are dominant to dwarf (t) and green seeds (G) are dominate
to yellow (g). What proportion of the offspring from a cross between heterozygous
tall, green-seeded individuals will be tall and have yellow seeds?
3/16
The genes that code for proteins constitute a surprisingly small portion of the
genomes of most multicellular eukaryotes. The majority of most eukaryotic genomes
consist of non-coding regions. Which of the following is the type of non-coding
regions. Which of the following is the type of non-coding DNA region found within
genes? (Hint: you amplified yours during lab)
Introns
During meiosis but NOT during mitosis
Update | 100% Correct.
Deletions and substitutions are two types of point mutations. Which is more likely to
cause mistranslations of proteins?
Deletions are more likely to cause mistranslations of proteins because they shift the
reading frame and cause downstream amino acids to be changed.
___________________ reproduction require that _________________ gamete be
produced through the process of meiosis. This is important because at fertilization
of the _______________ number is restored in the developing offspring.
Sexual; haploid; diploid
Which of the following statements about mutations is false?
Mutations always decrease an organisms fitness
In the case of Mendels peas, a single gene with two alleles determined the height of
the plant. However, in humans is adult height is influenced by many genes and
multiple alleles trait s such as human height is said to be
Polygenetic
Healthy Individuals may have just one sex chromosome as long as it is an X
chromosome. Why is this the case?
, The X chromosome has a full complement of genetic material, much of which is vital to
life; the Y chromosome is missing the most of these genes.
What are the possible genetic combinations in the gametes produced by a parent
with the genotype, AaBb?
AB, Ab, aB, ab
The difference in sizes between male and female gametes results from two unequal
divisions of _______________ in female gamete development.
Cytoplasm
In peas, tall plants (T) are dominant to dwarf (t) and green seeds (G) are dominate
to yellow (g). What proportion of the offspring from a cross between heterozygous
tall, green-seeded individuals will be tall and have yellow seeds?
3/16
The genes that code for proteins constitute a surprisingly small portion of the
genomes of most multicellular eukaryotes. The majority of most eukaryotic genomes
consist of non-coding regions. Which of the following is the type of non-coding
regions. Which of the following is the type of non-coding DNA region found within
genes? (Hint: you amplified yours during lab)
Introns
During meiosis but NOT during mitosis
