We have sent an email with your new password.

Close this window

Biology Exam 4 Pt. 1

51 Questions  I  By Hisjuliet
Biology Exam 4 pt. 1

  
Changes are done, please start the quiz.


Question Excerpt

Removing question excerpt is a premium feature

Upgrade and get a lot more done!
1.  A bacterial cell gives rise to two genetically identical daughter cells by a process known as
A.
B.
C.
D.
E.
2.  In order for a prokaryote cell to divide, which of the following must occur?
A.
B.
C.
D.
E.
3.  Bacteria typically have ____, whereas eukaryotes have ____
A.
B.
C.
D.
E.
4.  Which of the following statements about mitosis is true?
A.
B.
C.
D.
E.
5.  DNA replication occurs
A.
B.
C.
D.
E.
6.  The cells of the intestinal epithelium are continually dividing, replacing dead cells lost from teh surface of the intestinal lining.  If you examined a population of intestinal epithelial cells under the microscope, most of the cells would 
A.
B.
C.
D.
E.
7.  A cell cycle consists of 
A.
B.
C.
D.
E.
8.  The initiation of the S phase and teh M phase of the cell cycle depends on a pair of biochemicals called ____ and ____.
A.
B.
C.
D.
E.
9.  During mitosis and meiosis the chromatin compacts.  Which of teh following processe3s takes place more easily because this compaction?
A.
B.
C.
D.
E.
10.  When dividing cells are examined under a light microscope, chromosomes first become visible during
A.
B.
C.
D.
E.
11.  The structures that line up the chromatids on the equatorial plate during metaphase are called
A.
B.
C.
D.
E.
12.  The microtubules of teh mitotic spindle attach to a specialized structure in the centromere region of each chromosome called the
A.
B.
C.
D.
E.
13.  After the centromeres separate during mitosis, the chromatids, now called ____, move toward opposite poles of the spindle.
A.
B.
C.
D.
E.
14.  During mitotic anaphase, chromatids migrate
A.
B.
C.
D.
E.
15.  At the milestone that defines metaphase, the chromosomes
A.
B.
C.
D.
E.
16.  The sizes and shapes of chromosomes can be observed most easily in a cell that is in
A.
B.
C.
D.
E.
17.  At the milestone that defines telophase, the chromosomes
A.
B.
C.
D.
E.
18.  Chromosomes "decondense" into diffuse chromatin
A.
B.
C.
D.
E.
19.  In plant cells, cytokinesis is accomplished by the formation of a(n)
A.
B.
C.
D.
E.
20.  The major drawback of asexual reproduction is that it
A.
B.
C.
D.
E.
21.  A haploid cell is a cell
A.
B.
C.
D.
E.
22.  Sexual reproduction increase genetic variability through
A.
B.
C.
D.
E.
23.  Diploid cells of the fruit fly Drosophila have ten chromosomes. How many chromosomes does a Drosophila gamete have?
A.
B.
C.
D.
E.
24.  Each diploid cell of a human female contains ____ of each type of chromosome.
A.
B.
C.
D.
E.
25.  Which of the following statements about homologous chromosome pairs is false?
A.
B.
C.
D.
E.
26.  Human males have ____ sex chromosomes.
A.
B.
C.
D.
E.
27.  During meiosis, the sister chromatids separate during
A.
B.
C.
D.
E.
28.  The processes of synapsis and the formation of chiasmata
A.
B.
C.
D.
E.
29.  The exchange of genetic material between chromatids on homologous chromosomes occurs during
A.
B.
C.
D.
E.
30.  The number of chromosomes is reduced to half during
A.
B.
C.
D.
E.
31.  Accidents during meiosis that can result in trisomies and monosomies are called
A.
B.
C.
D.
E.
32.  The fact that most monosomies and trisomies are lethal to human embryos illustrates the
A.
B.
C.
D.
E.
33.  One difference between mitosis and meiosis I is that 
A.
B.
C.
D.
E.
34.  Many chromosome abnormalities (trisomies and menosomies) are not observed in teh human population because
A.
B.
C.
D.
E.
35.  The process of programmed cell death is called 
A.
B.
C.
D.
E.
36.  If two strains of true-breeding plants that have different alleles for a certain character are crossed, their progeny are called
A.
B.
C.
D.
E.
37.  Mendel's crossing of spherical-seeded pea plants with wrinkled-seeded pea plants resulted in progeny that all had spherical seeds.  This indicates that the wrinkled-seed trait is
A.
B.
C.
D.
E.
38.  The physical appearance of a character is called
A.
B.
C.
D.
E.
39.  Different forms of a gene are called
A.
B.
C.
D.
E.
40.  The site on the chromosome occupied by a gene is called a(n)
A.
B.
C.
D.
E.
41.  A particular genetic cross in which the individual in question is crossed with an individual known to be homozygous for a recessive trait is referred to as a 
A.
B.
C.
D.
E.
42.  A pea plant with red flowers is test crossed, and one half of the resulting progeny have red flowers, while the other half has white flowers.  Therefore, the genotype of the test-crossed parent was 
A.
B.
C.
D.
E.
43.  A dihybrid cross
A.
B.
C.
D.
E.
44.  Mendel's dihybrid crosses
A.
B.
C.
D.
E.
45.  Despite the law of independent assortment, when two loci are on the same chromosome, the phenotypes of the progeny sometimes do not fit the predicted phenotypes due to
A.
B.
C.
D.
E.
46.  Genetic mutations are
A.
B.
C.
D.
E.
47.  If the same allele has two or more phenotypic effects, it is said to be
A.
B.
C.
D.
E.
48.  How many autosomes do humans have?
A.
B.
C.
D.
E.
49.  What is the pattern of inheritance for a rare dominant allele?
A.
B.
C.
D.
50.  What fraction of offspring of the cross AaBb x AaBb is homozygous for all the dominant alleles, assuming that they are on different chromosomes?
A.
B.
C.
D.
E.
51.  In pea plants, the gene for yellow seeds, Y, is dominant to the allele for green seeds, y. A plant with green seeds must have the genotype
A.
B.
C.
D.
E.
Back to top

Removing ad is a premium feature

Upgrade and get a lot more done!
Take Another Quiz