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WorksheetsPMA 2 Review Cell Division
Total questions: 17
Worksheet time: 17mins
Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes and event that results from mitosis but NOT meiosis?
two stages of cell division
replication of cellular genetic material
daughter cells that are identical to the parent cell
four daughter cells that are produced from each parent cell
How are sexual reproduction and asexual reproduction different from each other?
sexual reproduction requires two parents and asexual reproduction requires only one parent
asexual reproduction requires two parents and sexual reproduction requires only one parent
mutation rates are lower in sexual reproduction than in asexual reproduction
asexual reproduction occurs only in multicellular organisms
Which type of reproduction leads to increased genetic variation on a population?
Parthenogenesis
asexual reproduction
Sexual reproduction
Vegetative reproduction
Which of the following phrases best describes cancer?
absence of cyclins in the DNA
uncontrolled cell growth caused by mutations in genes that skip the cell cycle checkpoints
multiple gene mutations on a chromosome of DNA
presence of genetic defects caused by hereditary disorders
A scientist wants to change the DNA of a sexually reproducing organism and have the new DNA present in every cell of the organism. In order to do this after fertilization, she would change the DNA in which of the following?
zygote
placenta
testes of the father
ovaries of the mother
Which row in the chart below indicates the correct process for each event indicated?
row 1
row 2
row 3
row 4
The diagram shows a cellular process that occurs in organisms.
What is the name of this process?
meiosis
mitosis
endocytosis
phagocytosis
The diagram shows homologous chromosomes during Prophase I of meiosis.
Which of the following correctly describes the process being illustrated?
mutation in which the DNA content of the gene is altered
segregation of sister chromatids
condensation and segregation of alleles
crossing-over in which alleles are exchanged
Which of the following best describes meiosis?
It is carried out in all tissues that require cell replacement.
It occurs only in cells in the reproductive structures of organisms
It happens in all tissues except the brain and spinal cord.
It is the first stage of mitosis.
The diagram shows two strawberry plants.
Plant 2 is produced asexually from Plant 1. If the leaf cells of Plant 1 have 56 chromosomes, how many chromosomes will be found in the leaf cells of Plant 2?
14
28
56
112
Hemophilia is a sex-linked, recessive trait. Which of the following describes the probability of hemophilia in the offspring of a man who does not have hemophilia and a woman whose father is a hemophiliac?
Each of their sons will have hemophilia.
None of their daughters will have hemophilia.
Their sons have a 25% chance of having hemophilia.
There is a 50% chance that their daughters will have hemophilia.
One of the parents of a child has phenylketonuria (PKU), which is caused by recessive alleles. The other parent does not have the PKU alleles. What is the chance that the couple will have a child with phenylketonuria?
0%
50%
75%
100%
Hitchhiker's thumb (H) is dominant to no hitchhiker's thumb (h). A woman who does not have hitchhiker's thumb marries a man who is heterozygous for hitchhiker's thumb. What is the probable genotypic ratio of their children?
0% Hh: 100% hh
50% Hh: 50% hh
75% Hh: 25% hh
100% Hh: 0% hh
The diagram shows a pedigree for a recessive genetic disorder.
What is the genotype of individual 6?
A. XHXH
XHXh
XHY
XhY
This diagram shows a diploid cell with two pairs of homologous chromosomes.
Due to independent assortment, what is the possible genetic make-up of gametes produced by this organism?
SsTt
Ss, Tt
S, s, T, t
ST, St, sT, st
The table lists the trials for fruit color where allele R exhibits incomplete dominance over allele R'.
Heterozygous fruit have orange phenotypes. What percent of offspring are expected to have an orange phenotype if the parent plants are orange (RR') and yellow (R'R')?
25%
50%
75%
100%
A human baby boy inherits a recessive allele from his mother. In which circumstance would he most likely show the trait coded for by the recessive allele?
The baby inherits the dominant allele from his father.
The allele is on an autosomal chromosome and the baby is a twin
The allele is on the Y chromosome.
The allele is on the X chromosome.
