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18 Oct 2018

What function(s) does mitosis fulfill for multicellular organisms?

Growth
Sexual reproduction
Repair
Protein synthesis
Respiration

Match the phrase on the left with the part of the cell cycle on the right.

DNA replication is checked for accuracy

[ Choose ] Cytokenesis Crossing Over G1 G0 Metaphase Prophase Anaphase G2 S M Telophase

Cells no longer divide

[ Choose ] Cytokenesis Crossing Over G1 G0 Metaphase Prophase Anaphase G2 S M Telophase

DNA is copied or replicated

[ Choose ] Cytokenesis Crossing Over G1 G0 Metaphase Prophase Anaphase G2 S M Telophase

Cells synthesize proteins needed for the process of mitosis

[ Choose ] Cytokenesis Crossing Over G1 G0 Metaphase Prophase Anaphase G2 S M Telophase

Cell doing its normal 'job'

[ Choose ] Cytokenesis Crossing Over G1 G0 Metaphase Prophase Anaphase G2 S M Telophase

Division of the DNA

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Jarrod Robel
Jarrod RobelLv2
21 Oct 2018
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All of the above have equal ability to metastasize

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Question 27

The correct order of stages of the cell cycle that a new cell will go through immediately after being produced by mitosis is

Question 27 options:

S, G1, G2, M

G1, G2, M, S

G1, S, G2, M

M, G1, S, G2

Question 28

What is the purpose of DNA replication

Question 28 options:

To copy the information in a gene so that extra protein synthesis can be done

To make an RNA copy of the gene

To provide the cell with extra DNA in case the original gets damaged

To ensure that two cells produced by mitosis have the same genetic information as the parent cell

Question 29

Which of the following is not a function and/or advantage of mitosis

Question 29 options:

It can repair damaged tissue

Growth takes place through mitosis

It can replace old or damaged cells

All of the above are functions and/or advantages

Question 30

Which stage of the cell cycle occurs just after mitosis

Question 30 options:

G1

G2

S

Prophase

Save

Question 31 (1.5 points) Question 31 Unsaved

DNA replication is completed by the end of

Question 31 options:

Prophase

G1

S phase

G2

Question 32

Which of the following is NOT true of DNA

Question 32 options:

Generally double stranded

Stores the cell genetic information

Replicated by DNA polymerase

Contains A, C, U, and G

Question 33

These cell may enter G0 of the cell cycle permanently

Question 33 options:

Hepatocytes

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Neurons

Cells in the digestive system

Question 34

When a primary spermatocyte, goes through meiosis, how many mature sperm will be produced

Question 34 options:

1

2

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Question 35

When a primary oocyte goes through meiosis, how many mature eggs will be produced

Question 35 options:

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2

3

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20. All living things must maintain a constantinternal environment to function properly through the process of__. (Points : 2)
metamorphosis
alkalosis
homeostasis
cryogenesis
Question 21.21. Glucose, fructose, sucrose,starch and glycogen are all examples of ___. (Points : 2)
proteins
carbohydrates
lipids
nucleic acids
Question 22.22. Some insects can "walk onwater" because __. (Points : 2)
water has a high surfacetension
water is adhesive
water istransparent
water expands when itfreezes
Question 23.23. To overcome an energy barrierbetween reactants and products in a chemical reaction, energy mustbe provided to get the reaction started. This energy is called ___energy. (Points : 2)
potential
reaction
initiation
activation
Question 24.24. Where in the cell doesglycolysis takes place? (Points : 2)
lysosomes
cytoplasm
mitochondria
nucleus
Question 25.25. Photosynthesis uses sunlightto convert water and carbon dioxide into __. (Points : 2)
carbon dioxide andwater
oxygen and sugars
proteins and sugars
carbon dioxide andoxygen
Question 26.26. The _____ of photosynthesisare the _____ of cellular respiration. (Points : 2)
electrons, protons
pigments, products
products, reactants
elements, atoms
Question 27.27. The energy currency of thecell is __. (Points : 2)
glucose
ATP
starch
glycogen
Question 28.28. When blood glucose levelsdecrease (as between meals), what reserves are tapped first?(Points : 2)
glycogen
fats
steroids
amino acids
Question 29.29. When glucose is used as anenergy source, the largest amount of ATP is produced by the ____portion of the entire respiratory process. (Points : 2)
glycolytic
Kreb's cycle
acetyl-CoAformation
electron transportchain
Question 30.30. Pyruvic acid can be regardedas the end product of ____. (Points : 2)
glycolysis
fermentation
the Kreb cycle
the electron transportchain
Question 31.31. How can one increase the rateof a chemical reaction? (Points : 2)
Increase the activationenergy.
Cool the reactants.
Decrease the pH.
Add an enzyme(catalyst).
Question 32.32. A prokaryote has ___. (Points: 2)
membrane-boundorganelles
nucleus
mitochondria
a cell membrane
Question 33.33. Unlike animal cells, plantcells have __. (Points : 2)
cell membranes
cell walls
chromosomes
mitochondria
Question 34.34. Which of the followingrequires energy to move molecules across the cell membrane? (Points: 2)
diffusion
osmosis
active transport
passive transport
Question 35.35. The ___ is the site of proteinsynthesis. (Points : 2)
nucleus
ribosome
mitochondrion
cytoskeleton
Question 36.36. Diffusion of water through asemipermeable membrane is called __. (Points : 2)
osmosis
diffusion
active transport
passive transport
Question 37.37. Which component of a cellmembrane is likely to function as a transporter? (Points : 2)
cholesterol
lipids
proteins
carbohydrates
Question 38.38. If potato slice is placed indistilled water, the cells would most likely __. (Points : 2)
lose water and becomelimp
neither take up water orlose water
take up water andswell
transport water into thecell by active transport.
Question 39.39. The chloroplast functions in___. (Points : 2)
protein synthesis
lipid storage
DNA replication
photosynthesis
Question 40.40. The fluid mosaic modelpresents the modern view of ___. (Points : 2)
the cell membranestructure
chromosome movementduring mitosis
protein synthesis
ATP production
Question 41.41. During which stage of mitosisdo nucleoli reappear and the nuclear membrane reforms? (Points :2)
prophase
metaphase
anaphase
telophase
Question 42.42. During which stage of mitosisdo chromatids separate to form two sets of daughter chromosomes?(Points : 2)
prophase
metaphase
anaphase
telophase
Question 43.43. Which of the following is thelongest stage of mitosis? (Points : 2)
prophase
metaphase
anaphase
telophase
Question 44.44. When during the cell cycle isDNA replicated? (Points : 2)
metaphase
Synthesis phase (S)
G1
cytokinesis
Question 45.45. A cell with 10 chromosomesundergoes mitosis and cell division. How many daughter cells areproduced and what number of chromosomes do they have? (Points :2)
4 daughter cells, 20chromosomes each
4 daughter cells, 5chromosomes each
2 daughter cells, 10chromosomes each
2 daughter cells, 5chromosomes each
Question 46.46. Maize (corn) has a haploidnumber of 10. How many chromosomes are in a zygote of maize?(Points : 2)
5
10
20
Not enough informationprovided
Question 47.47. Crossing over is one of themost important events in meiosis because __. (Points : 2)
homologous chromosomesare separated into different daughter cells
the number of chromosomesallotted to each daughter cell must be halved
sister chromatids must beseparated into different daughter cells
it produces new arrays ofalleles on chromosomes and contributes to genetic diversity
Question 48.48. While viewing stained onionroot tip cells you notice that distinct chromosomes cannot beobserved in most of the cells. This is because most of the cells___. (Points : 2)
were killed whilepreparing the slide
are in Interphase
are in metaphase
are undergoingMeiosis
Question 49.49. Each offspring cell producedby binary fission contains __. (Points : 2)
half the chromosomes ofthe original cell
twice as many chromosomesas the original cell
an independent assortmentof the original cell's chromosomes
an identical copy of theoriginal cell's chromosome.
Question 50.50. A DNA strand has the sequenceA-C-A-G-C-C-G-T-A. What would be its complementary strand? (Points: 2)
G-T-G-A-T-T-A-C-G
A-C-A-G-C-C-G-T-A
T-G-T-C-G-G-C-A-T
U-G-U-C-G-G-C-A-U

___1. Nationally, the most common cause of Down Syndrome is
a. nondisjunction of Chromosome 21 during meiosis
b. translocation of Chromosome 21 onto another chromosome
c. inversion of a large section of Chromosome 21
d. deletion of the Down Syndrome gene
___2. In humans, sex is determined by
a. The presence or absence of the Y chromosome
b. The ratio of X chromosomes to sets of autosomes
c. The temperature during fetal development
d. Which parent is stronger at the time of conception
___3. A translocation is
a. a chromosomal abnormality in which a piece of one chromosome breaks off and attaches to a different chromosome
b. an abnormality in which the chromosomes are translocated out of the nucleus
c. a condition in which the chromosome has broken in two places and come back together with the middle segment backward
d. an abnormality in which there is an extra copy of one chromosome
___ 4. In snapdragons, a red-flowered plant crossed with a white-flowered plant produces all pink-flowered offspring. But crossing two pink-flowered plants produces red, pink, and white in a 1:2:1 ratio. This is a good example of
a. Incomplete dominance
b. Dominance of the red allele over the white allele
c. Lethal effects of the pink allele
d. Sex-linkage of the flower-color alleles
___ 5. If a person with type AB blood marries a person with Type O blood, what blood types are possible in their children? (Assume this trait is a single-gene trait, not complicated by interaction with other genes).
a. A, B, AB, or O
b. A or B only
c. AB or O only
d. AB only 2
___6. In what phase of meiosis are haploid nuclei first formed? a. Anaphase I b. Metaphase II c. Telophase II d. Metaphase I e. Telophase I
___7. What is the phenotype of a heterozygous tall pea plant? a. tall b. Tt c. TT d. tt e. dominant
___ 8. If genes A and B are far apart on a chromosome, and A and C are close together, which of the following observations is expected?
a. Crossing over will occur more often between A and C than between A and B
b. Crossing over will occur at equal frequencies between A and C, and between A and B
c. Crossing over will occur more often between A and B than between A and C
___9. Sometimes an organism’s genotype for one gene masks the effect of a different gene. This phenomenon is called
a. Dominance
b. Incomplete dominance
c. Co-dominance
d. Epistasis
e. Variable expressivity
___10. The dominant allele of a gene is
a. The one that is expressed most often in a population
b. The one that is expressed most often in any particular cross
c. The one that is expressed in an individual that has two different alleles
d. The one that is most healthy to have, that gives the greatest fitness
___11. In human cells, DNA replication occurs
a. In S phase of interphase
b. In G1 phase of interphase
c. In G2 phase of interphase
d. In prophase of mitosis
e. Whenever the cell needs to read the DNA to make proteins
___ 12. A process in which recipient cells take up genes from DNA molecules floating free in the surrounding medium is called
a. conjugation
b. specialized transduction
c. generalized transduction
d. transformation 3
___ 13. Most calico cats are female. However, a few rare males are observed. What is the genotype of a male calico cat?
a. X BX 0
b. X OY
c. X BY
d. X BYY
e. X BX OY
___ 14. A type of red-green color-blindness is a sex-linked (X-linked) recessive trait in humans. Can a woman have this type of color-blindness?
a. Yes, a woman could be color-blind if her mother and father were both heterozygous.
b. Yes, a woman could be color-blind but only if she has an abnormal number of sex chromosomes.
c. No, women can't show sex-linked traits because they lack a Y chromosome.
d. No, women can't show sex-linked traits because they have two X chromosomes.
e. Yes, a woman could be color-blind if her father was color-blind and her mother was a carrier (heterozygous).

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