In-Class Assignment Ans Key File

ln-Class Assignment
Chapter 14
BiotogY 3201
Name:
-
Multiple Cnoi"" Circteihe choibe that
1. which
best completes the statement
or answers the question'
best describes the daughter cells produced from meiosis?
chromosome number
(-{)
tbru
diploid
@
tbur
haploicl
(t')
two
dryloid
(D)
t\vo
haploict
C)C
D)D
A)A
Ge
z.
a-mount of
Two daughter cells are produced from mitosis. One of these cells has one more than the normal
elror
an
chromosomes while thoother cell has one less than the normal amount. In which stage did
occur?
@
C) prophase
D) telophase
anaphase
B) interphase
3. Which best describes the daughter cells produced if S phase were eliminated from the cell cycle?
A) They would be genetically identical to each other.
-B] They would be genetically identical to the parental cell. parental cell.
(C)
fn"y would
D)
4.
have half the genetic material found in the
They would synthesize the missing genetic material on their own.
What is the advantage of crossing over during meiosis?
A) decreases mutatrons
B) decreases sterility
^C)
increases immunity
Alincreases
variation
5. If anaphase I did not occur in a human cell, how many chromosomes would be present in the four
daughter cells produced by meiosis?
daughter cell
(A)
t3
l3
@
+6
-16
(c)
l+
'tt
(D)
17
17
C)C
D)D
A) A
,B
@
6.
Which best describes both fertilizations that occur during sexual reproduction in flowering plants?
s
A
B) B
fertilization
(o
1" fertilization
n + tt -*> 2tt
ti+11
(B)
n+n--+2fi
2n + 2n --> 4n
(c')
tl+n+n-+311
t1+tl+fi *+ 3n
(D)
rt
+
t7
+t1 --+ 317
C)C
D)D
2"d
+n--+3n
2n+2n
+ 4n
7. ln which phase of the cell cycle
A)
8.
does DNA replicate?
C) met'aphase
D) telophase
anaphase
{G)
interphase
Which phase is indicated in the diagram below?
A) anaphase
B) metaphase
^g.
ln-Class Assignment
Chapter 14
Biology 3201
Qprophase
D)
telophase
Which best describes a sperm cell?
A) contains large amounts of cytoplasm _C) larger size than egg cells
(D motile
B) diploid
10. Which type of asexual reproduction is used by
C) fragmentation
D) parthenogenesis
@umury fission
e) budding
11. If a parent cell has 24 chromosomes
bacteria?
and undergoes meiosis, how many ch-romosomes
will
be found
in
each new daughter cell?
At6
c) 24
D) 48
(P;tz
12. Where
A)
B)
are the mitochondria located in a sperm cell?
acrosome
head
(D"iaale
piece
D) tail
13. During which stage of meiosis do homologous chromosomes pair
A) anaphase I
B) anaphase II
@
D)
prophase
prophase
up?
I
II
14. When mitosis occurs in onion root tip cells, a cell piate develops foilowing
.
How is animal cell mitosis different?
@c"tt
B)
15.
telophase.
membrane pinches inward.
Chromosomes separate in pairs.
c) Four cells
are formed rather than two.
D) Two nuclei are formed.
The diagram below shows the growth pattern of some human skin cells after they have been exposed to
ultraviolet radiation. What type of cells are most likely found in area X?
Skin
cells
Lymph
Trme
+
r,'essel
fc-\
\A-)
cancer
B) red blood
c)
sex
D) white blood
16. What are chromatids?
A) bacterial chromosomes
B) dense patches within the nucleus
G
duplicate copies of a chromosome
nuclei
D) prokaryotic
Biology
3201
17. Why might
Chapter
14
a doctor suggest radiation as the best treatment option
ln-Class Assignment
for
a patient diagnosed
with
a
localized
cancerous fumour?
A)
B)
can be administered at
has no side
effects
18. How are human spenn
home
@
is focused on the affected area only
affect all of the body cells
D) will
and eggs similar?
A) both are produced in equal numbers
B) both are the same size
_ C) both have motility
@
both have the same number of chromosomes
19. In which part of the flower does both meiosis
(bovule
A) anther
B) filament
20. When
and fertilization occur?
D)
stigma
do tetrads form in meiosis(I)?
A) anaphase (I)
B) metaphase (I)
(I)
D) telophase (I)
@.ophase
4
is the process of meiosis different than the process of mitosis? Give at least four (4) differences and briefly
explain how and why each are different?
21. How
S<e P.^As^, S}*"i, \,{,t f
f
tr,r
Nrus-
l\t.,2-