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WorksheetsGenetics Chapters 2 and 3 Review
Total questions: 40
Worksheet time: 27mins
Name
Class
Date
1.
Which stem cells have the most potency?
a)
Multipotent
b)
Pluripotent
c)
Totipotent
d)
Unipotent
2.
Stem cells are
a)
cells that grow uncontrollably
b)
undifferentiated and can be any type of cell
c)
never go through cell division
d)
only found in embryos
3.
Stem cells can be obtained from
a)
embryos
b)
some adult tissues
c)
umbilical cord blood
d)
all of the above
4.
What does "pluripotent" mean?
a)
able to divide and make many different types of cells
b)
not able to divide
c)
can only divide and make one cell type
d)
if it divides, it will make a cancerous tumor
5.
What is the difference between embryonic stem cells and adult stem cells?
a)
Embryonic stem cells can differentiate into more cell types than adult stem cells
b)
Adult stem cells are pluripotent, just like embryonic stem cells
c)
Adult stem cells can differentiate into more cell types than embryonic stem cells
d)
Adult stem cells grow bigger than embryonic stem cells
6.
Medical research involving stem cells is important for ...
a)
To test the effectiveness of new drugs
b)
The generation of cells and tissues that can be used in cell based therapies
c)
To understand the consequences of turning genes off and on
d)
All of the above
7.
Which is true about Adult Stem Cells.
a)
They no longer do mitosis, their cell type is set and can not change
b)
They are limited to the type of cell they can become.
c)
They can become any cell type in the body
d)
They are found in embryos
8.
The diagram shows the process of cell specialization from a single stem cell. Which of the following statements is true about the process of specialization.
a)
Specilized cells (blood, skin, nervous etc) cannot be produced from a single stem cell
b)
Specilized cells are produced immediately following fertilization
c)
Even though all the cells in an organism come from one single cell, they can specialize into different cell types
d)
Sincce all the cells in an organism come from one single cell, they must all have the same structure and function
9.
How do stem cells know what type of cells to differentiate into?
a)
The nucleus has instructions to turn some genes on and some genes off
b)
Signals from chemicals in the organism or from the environment determine which genes will be turned on and off
c)
Genes turn on and off randomly
d)
The cell has unique DNA that determines what the cell will become.
10.
What are iPS cells, and what do they mean to stem cell research?
a)
Induced purpose stem cells, mean embryo cells were made into adult-like cells
b)
Induced purpose stem cells, mean adult cells were reversed to baby cells
c)
Induced pluripotent stem cells, mean adult cells were made into embryo-like cells
d)
Induced pluripotent stem cells, mean cells were totipotent and are now pluripotent
11.
Thalidomide was a drug given to pregnant women to counteract the effects of morning sickness. It caused congenital malformations such as the absence of limbs. When would it have been the most dangerous time to take Thalidomide?
a)
Weeks 1-2
b)
Weeks 3-4
c)
Weeks 6-8
d)
Weeks 20-36
12.
Stem cells are removed from the inner mass of a developing cell. What is this called?
a)
Granula
b)
Blastocyst
c)
Morula
d)
Zygote
13.
Identify the phase.
a)
Metaphase I
b)
Metaphase II
c)
Prophase I
d)
Anaphase II
14.
What phase is represented?
a)
prophase1
b)
prophase 2
c)
telophase 1
d)
telophase 2
15.
What phase is represented?
a)
metaphase 1
b)
metaphase 2
c)
anaphase 1
d)
anaphase 2
16.
What phase is shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
17.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs
a)
crossing over
b)
mutagenesis
c)
hybridization
d)
fertilization
18.
If a somatic (body) cell in a butterfly contains 24 chromosomes, a butterfly egg would contain
a)
3
b)
6
c)
12
d)
24
19.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
20.
What kind of cells are made in MEIOSIS?
a)
Haploid Gametes
b)
Diploid Somatic Cells
c)
Skin Cells
d)
Liver Cells
21.
What phase is represented?
a)
metaphase 1
b)
metaphase 2
c)
anaphase 1
d)
anaphase 2
22.
What process, and which type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
23.
What is one of the advantages, why is it better to reproduce sexually versus asexually?
a)
survival of the fittest
b)
overproduction
c)
genetic variation
d)
cloning
24.
Oogenesis results in the formation of:
a)
1 ovum; 3 polar bodies
b)
2 ova; 2 polar bodies
c)
1 ovum; 3 secondary oocytes
d)
4 ova
25.
Spermatogenesis results in the formation of:
a)
1 spermatozoa; 3 polar bodies
b)
2 spermatids; 2 spermatozoa
c)
4 spermatids
d)
4 spermatozoa
26.
Crossing over occurs between:
a)
sister chromatids
b)
chromatin
c)
centromeres
d)
non-sister chromatids
27.
Meiosis I is also called:
a)
Independent assortment
b)
Differentiation
c)
Reduction division
d)
Genetic recombination
28.
1. A female egg that has been fertilized.
a)
Amniotic Sac
b)
Placenta
c)
Infant
d)
Zygote
29.
1. The unborn young from the eighth week of pregnancy to birth
a)
Fetus
b)
Embryo
c)
Infant
d)
Adult
30.
1. A thin membrane that completely surrounds the embryo and contains a protective fluid in which the embryo is immersed.
a)
Embryo
b)
Umbilical Cord
c)
Amniotic Sac
d)
Placenta
31.
What is the trophoblast?
a)
Future uterine lining
b)
Future heart
c)
Future placenta
d)
Future brain
32.
In what process does a fertilized egg undergo cell division without further growth?
a)
cleavage
b)
gastrulation
c)
differentiation
d)
implantation
33.
What part of the blastocyst will develop into the human embryo and eventually into a fetus?
a)
archenteron
b)
trophoblast
c)
blastopore
d)
inner cell mass
34.
Which of the following do identical twins share? (choose the best answer)
a)
genome
b)
appearance
c)
inheritance of traits
d)
mutations
35.
When one egg is fertilized by one male sperm and the egg divides into two separate embryos, what type of twin is born? (choose the best answer)
a)
Monozygotic
b)
Siblings
c)
Fraternal
d)
Dizygotic
36.
What is a chemical agent that can harm prenatal development?
a)
Vitamins
b)
Reflexes
c)
Teratogens
d)
Puberty
37.
What is another name for progeria?
a)
Sawmill-Jerry Progeria Syndrome
b)
Werner's Syndrome
c)
Hutchinson-Gilford Progeria Syndrome
d)
Harvey's Progeria Syndrome
38.
What is progeria?
a)
A progressive cardiovascular disease which accelerates aging in children.
b)
A progressive cardiovascular disease which inhibits aging in children.
c)
A progressive genetic disease which inhibits aging in children.
d)
A progressive genetic disease which causes accelerated aging in children.
39.
Adult-onset single gene traits are often ___________________?
a)
deadly
b)
dominant
c)
recessive
40.
Aging is largely determined by...
a)
genes
b)
environmental factors
c)
both
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