Download Circle True or False: If false, replace the underlined word to

Name: ________________________
Date: ___________ Hr: __________
Circle True or False: If false, replace the underlined word to now make the statement true.
(1 pt each)
1. T or F:
A normal human karyotype shows 23 chromosomes.
2. T or F:
A cell spends most of its life in interphase.
3. T or F:
Mitosis is the process of cell death.
4. T or F:
Pollen is plant sperm.
5. T or F:
Cell differentiation is a result of the production of sugars.
6. T or F:
When a cell is completely undifferentiated and is able to be turn into any other
kind of cell, it is called multipotent.
7. T or F:
During meiosis, a cell undergoes 2 cell divisions.
8. T or F:
The zygote is made up of three layers of cells called the endoderm, mesoderm and ectoderm.
9. T or F:
When an egg and sperm cell join to form a zygote, or fertilized egg,
it is called meiosis.
10. T or F:
Cells that are undifferentiated and have not become specialized cells yet are
called cloning cells.
11. T or F:
Meiosis results in four gametes that are diploid.
12. T or F:
Chromosomes can exchange information and genetic material during early meiosis. This
process is called homologous.
Word Bank:
Interphase
Metaphase
Anaphase
Prophase
Crossing over
Cytokinesis
Mitosis
Meiosis
Multiple Choice:
13.
Non-disjunction
Cloning
Stem cells
Proteins
Lipids
Fertilization
Carbohydrates
Pollen
Ovule
Totipotent
Multipotent
Blastocyst
2 divisions
Gastrula
23 chromosomes Haploid
Pleuripotent
Diploid
3 divisions
46 chromosomes
Choose the BEST answer and circle the letter for that choice.
A fruit fly has 6 giant chromosomes. How many chromosomes would be in each of their cells at the
end of Mitosis?
a.
b.
c.
d.
e.
2 chromosomes
3 chromosomes
6 chromosomes
12 chromosomes
24 chromosome
14.
In that same fruit fly, how many chromosomes would be in each of their cells at the end of Meiosis?
a.
b.
c.
d.
e.
15.
Where would Mitosis happen in that fruit fly?
a.
b.
c.
d.
e.
16.
metaphase
anaphase
interphase
cytokinesis
prophase
A genetic counselor was looking at a patients karyotype and noticed that there were three
of chromosome 13. What genetic disorder does this patient have?
a.
b.
c.
d.
20.
centrioles
cytoplasm
spindle fibers
mitochondria
lysosomes
At the end of mitosis and meiosis the cellular membrane starts to pinch in and then the cytoplasm is
finally split to form two new cells. What is this phase or process called?
a.
b.
c.
d.
e.
19.
offspring cells
new cells
daughter cells
mitotic cells
none of the above
Which organelle in the cell attaches to the chromosomes and helps to line up during mitosis and
meiosis?
a.
b.
c.
d.
e.
18.
in the sex cells of the fruit fly, sperm and egg
in the cells of the wing
in the cells of the leg
b and c, not a
a, b and c
At the end of mitosis and meiosis the new cells are called the:
a.
b.
c.
d.
e.
17.
2 chromosomes
3 chromosomes
6 chromosomes
12 chromosomes
24 chromosomes
Trisomy 21 (Down’s Syndrome)
Trisomy 13 (Patau Syndrome)
Monosomy X (Turner Syndrome)
XXY (Klinefelter’s Syndrome)
The genetic counselor then looked at a female patients karyotype and noticed that she had only one
sex chromosome. What genetic disorder does this patient have?
a.
b.
c.
d.
Trisomy 21 (Down’s Syndrome)
Trisomy 13 (Patau Syndrome)
Monosomy X (Turner Syndrome)
XXY (Klinefelter’s Syndrome)
21.
Cloning results in an organism that
a.
b.
c.
d.
e.
22.
A somatic cell is
a.
b.
c.
d.
23.
sliding genes
phenotype genes
jumping genes
multipotent genes
The process where a scientist inserts a working copy of a gene is inserted directly into DNA where a
mutation occurred is known as
a.
b.
c.
d.
e.
25.
A cell that is haploid
A sex cell
Any cell other than a sex cell
A cell without a nucleus
Barbara McClintock noticed that a certain kind of corn could have kernels of different colors. After
her research, she discovered it was due to genes that could move around on chromosomes. What did
she name them?
a.
b.
c.
d.
24.
Has half the number of chromosomes that the original organism has
is identical to the original organism
the same color as the original organism
A and B, not C
B and C, not A
jumping genes
gene therapy
cloning
stem cell therapy
none of the above
Adult stem cells, such as pre-blood cells, are
a.
b.
c.
d.
multipotent
totipotent
pluripotent
none of the above
Constructed Response Questions:
26.
This is a picture of a mosquito’s chomosomes. In mosquitos, long noses are dominant over short noses. If
this mosquito has a short nose, what is its genotype? (Use the letter “g” when writing the genotype) (1 pt)
The trait for nose length is found on chromosome 3, label the genotype on this picture. (2 pts)
______________
1
_______________
2
_______________
3
______________
4
_______________
5
_______________
6
27. How is cloning achieved? (describe the process) (3pts)
28.
Look at the picture that is attached which describes how stem cells become specialized cells
(differentiation).
a.
Briefly describe how stem cells become specialized (2 pts)
b.
29.
30.
Use the diagram and determine if it is possible for a smooth muscle cell to develop
from the endoderm? Explain. (3 pts)
List 2 differences and 2 similarities between meiosis and mitosis: (1 pt each)
(remember that your similarities and differences should be explained in detail!!)
Similarities:
1.
Differences:
1.
2.
2.
Imagine that you are a genetic counselor and you have to explain to one of your patients how their
child inherited a genetic disorder, Trisomy 21, due to a problem during meiosis. Explain to them what
meiosis is, how non-disjunction occurs, and how they ended up with a child that with an extra copy of
chromosome 21. Use the words below to help you. (10 pts)
Spermatogenesis
Oogenesis
Spindle fibers
Centrioles
Divisions
Meiosis
Fertilization
Gamete
Haploid
Diploid
Zygote
Sperm
Egg