BIO Final Exam Questions and Answers

BIO Final Exam Questions and Answers

Question 1.
Meiosis II typically produces _____ cells, each of which is _____.
Correct Answer: four ... haploid

Question 2.
During meiosis what is the process that creates new combinations of alleles along a single
chromosome?
Correct Answer: crossing over

Question 3.
During which stage of meiosis do chromosomes align on the equator of a haploid cell?
Correct Answer: metaphase II

Question 4.
Bacteria undergo meiosis. T/F
Correct Answer: false

Question 5.
When do sister chromatids break apart and begin moving to opposite poles of the cell?
Correct Answer: anaphase

Question 6.
Which stage of mitosis is this cell in?
Correct Answer: metaphase

Question 7.
In CAM plants, there is a ______ separation between the light reactions and the Calvin
Cycle.
Correct Answer: temporal

Question 8.
Which statement most accurately describes the pattern of inheritance for a human disease
caused by a dominant allele on the X chromosome (assuming the disease allele is rare)?
Correct Answer: Affected fathers have all affected daughters, but no affected
sons.

Question 9.
What does a homologous pair of chromosomes consist of during prophase?
Correct Answer: two chromosomes and four chromatids

Question 10.
Deciduous trees have leaves that typically change color in the autumn. This is due to the
fact that chlorophyll is reabsorbed into the tree, but leaves the carotenoids, which appear
yellow and orange to the human eye. T/F
Correct Answer: true

, Question 11.
Yeasts are single-celled eukaryotes that don't have a mitochondrion. Can they exist in an
environment without oxygen?
Correct Answer: Yes, yeasts can exist in an oxygen-poor environment. They will
only be able to produce 2 net ATP via fermentation, but the absence of oxygen
will not kill the organisms.

Question 12.
When do chromosomes first become visible?
Correct Answer: prophase

Question 13.
Which theory was disproved when Mendel observed that the F1 generation of a
monohybrid cross resembled one of the parents?
Correct Answer: the theory of blending inheritance

Question 14.
Which of the following is a function of cellular membranes proteins?
Correct Answer: They allow passage of select molecules that could not
otherwise cross the lipid bilayer.

Question 15.
Two alligators are heterozygous for albinism (Aa) . The dominant allele (A) codes for
normal pigmentation, and the recessive allele (a) codes for no pigmentation. What
percentage of their offspring would have an albino phenotype?
Correct Answer: 25%

Question 16.
This cell is in which phase of the cell cycle?
Correct Answer: prophase

Question 17.
At which stage of meiosis do haploid cells contain two sister chromatids?
Correct Answer: telophase I

Question 18.
A tall, purple-flowered pea plant (TtPp) is allowed to self-pollinate. (The recessive alleles
code for short plants and white flowers.) The phenotypic ratio of the resulting offspring is
9:3:3:1. What is the genotype of the plant whose phenotype appeared once out of every
16 offspring (the "1" in the 9:3:3:1 ratio)?
Correct Answer: ttpp

Question 19.
ATP is generated during the light reactions. T/F
Correct Answer: true

Question 20.
The endoplasmic reticulum is continuous with the nuclear envelope. T/F
Correct Answer: true