BIO 1201 GREGG EXAM 3 2026 ECOLOGY
AND EVOLUTION REVIEW QUESTIONS
ANSWERS VERIFIED GUIDE
◉ Pairs of homologous chromosomes ___.
Answer: have genes for the same characteristics at the same loci
◉ The mosquito Aedes aegypti has a karyotype of 2n = 6. Which
diagram shows a proper metaphase II?
Answer: B
◉ Meiosis II is similar to mitosis because ___.
Answer: sister chromatids separate
◉ How and at what stage is independent assortment accomplished?
Answer: metaphase alignment during meiosis I
◉ A diploid cell contains six chromosomes. After meiosis I, each
duaghter cell contains ___.
Answer: a mixture of maternal and paternal chromosomes totaling 3
◉ Sister chromatids move away from each other during ___.
,Answer: anaphase II
◉ The diploid chromosome number (2n) of Drosophila is 8 and its
haploid number (n) is 4. How many possible arrangements of
chromosomes are possible in the gametes owing to independent
assortment?
Answer: 16
◉ Various forms of a gene at a given locus are called ___.
Answer: alleles
◉ If short hair (L) is dominant to long hair (l), then what fraction of
the offspring produced by a cross of Ll x llwill be homozygous
dominant?
Answer: 0
◉ The most accurate description of an organism with genotype Aa is
___.
Answer: heterozygous
◉ Blood typing is used as evidence in paternity cases. In one case,
the mother had blood type B and the child had blood type O. Which
of the following blood types could the father not have?
Answer: AB
, ◉ An individual with a genotype of AaBbCC is able to produce how
many different kinds of gametes?
Answer: 4
◉ A female fruit fly whose male parent has white eyes ___.
Answer: must have a gene for white eyes
◉ A colorblind woman marries a man with normal color vision.
Which of the following is true of their children?
Answer: All daughters will be heterozygous and all sons will be
colorblind
◉ Calico cats are female because ___.
Answer: a male inherits only one of the two X-linked genes
controlling hair color.
◉ What is the reason that linked genes are inherited together?
Answer: They are located close together on the same chromosome
◉ If a pair of homologous chromosomes fails to separate during
anaphase of meiosis I, what will be the chromosome number of the
four resulting gametes with respect to the normal haploid number
(n)?
AND EVOLUTION REVIEW QUESTIONS
ANSWERS VERIFIED GUIDE
◉ Pairs of homologous chromosomes ___.
Answer: have genes for the same characteristics at the same loci
◉ The mosquito Aedes aegypti has a karyotype of 2n = 6. Which
diagram shows a proper metaphase II?
Answer: B
◉ Meiosis II is similar to mitosis because ___.
Answer: sister chromatids separate
◉ How and at what stage is independent assortment accomplished?
Answer: metaphase alignment during meiosis I
◉ A diploid cell contains six chromosomes. After meiosis I, each
duaghter cell contains ___.
Answer: a mixture of maternal and paternal chromosomes totaling 3
◉ Sister chromatids move away from each other during ___.
,Answer: anaphase II
◉ The diploid chromosome number (2n) of Drosophila is 8 and its
haploid number (n) is 4. How many possible arrangements of
chromosomes are possible in the gametes owing to independent
assortment?
Answer: 16
◉ Various forms of a gene at a given locus are called ___.
Answer: alleles
◉ If short hair (L) is dominant to long hair (l), then what fraction of
the offspring produced by a cross of Ll x llwill be homozygous
dominant?
Answer: 0
◉ The most accurate description of an organism with genotype Aa is
___.
Answer: heterozygous
◉ Blood typing is used as evidence in paternity cases. In one case,
the mother had blood type B and the child had blood type O. Which
of the following blood types could the father not have?
Answer: AB
, ◉ An individual with a genotype of AaBbCC is able to produce how
many different kinds of gametes?
Answer: 4
◉ A female fruit fly whose male parent has white eyes ___.
Answer: must have a gene for white eyes
◉ A colorblind woman marries a man with normal color vision.
Which of the following is true of their children?
Answer: All daughters will be heterozygous and all sons will be
colorblind
◉ Calico cats are female because ___.
Answer: a male inherits only one of the two X-linked genes
controlling hair color.
◉ What is the reason that linked genes are inherited together?
Answer: They are located close together on the same chromosome
◉ If a pair of homologous chromosomes fails to separate during
anaphase of meiosis I, what will be the chromosome number of the
four resulting gametes with respect to the normal haploid number
(n)?
