Download Sexual Reproduction and Meiosis Work

Name ______________________________ Class ___________________ Date __________________
Skills Worksheet
Chromosomes and Mitosis
Look-Alikes
In the space provided, write the letter of the term or phrase that best describes
how each numbered item looks.
_____ 1. super coil
a. a large, thick spring
_____ 2. chromosome
b. cars of a train
_____ 3. metaphase
c. a jump rope with an X on it
_____ 4. genes in a
chromosome
d. an X
e. a long line of X’s jumping rope
_____ 5. spindle
Work-Alikes
In the space provided, write the letter of the term or phrase that best describes
how each numbered item functions.
_____ 6. karyotype
a. twins
_____ 7. homologous
chromosomes
b. traffic light
c. scenes of a play
_____ 8. stages of mitosis
_____ 9. haploid cell
d. chessboard with only the white
pieces
_____ 10. cell cycle
e. a family picture
Cause and Effect
In the space provided, write the letter of the term or phrase that best matches each
cause or effect given below.
Cause
11. __________________
12. mitosis
13. _________________
14. _________________
15. cell plate forms
16. changes in
chromosome structure
Effect
start of mitosis
___________________
development of male
Down syndrome
___________________
___________________
a. plant cell separates
b. trisomy 21
c. Y chromosome
d. nuclear membrane
dissolves
e. one nucleus
becomes two nuclei
f. mutations
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science: Biology
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Chromosomes and Mitosis
Name ______________________________ Class ___________________ Date __________________
Chromosomes and Mitosis continued
Linkages
In the spaces provided, write the letters of the two terms or phrases that are linked
together by the term or phrase in the middle. The choices can be placed in any
order.
a. mitosis checkpoint
b. interphase
c. gene mutation
d. second growth (G2) phase
e. cancer
f. cytokinesis
g. cell growth (G1) checkpoint
h. telophase
i. first growth (G1) phase
j. metaphase
17. ______ mitosis ______
18. ______ synthesis (S) phase ______
19. ______ anaphase ______
20. ______ DNA synthesis (G2)
checkpoint ______
21. ______ protein may not
function ______
Analogies
An analogy is a relationship between two pairs of terms or phrases written as
a : b :: c : d. The symbol : is read as “is to,” and the symbol :: is read as “as.” In
the space provided, write the letter of the pair of terms or phrases that best
completes the analogy shown.
_____ 22. chromosome : DNA and protein ::
a. gene : centromere
b. chromatid : gamete
c. spindle fiber : microtubule
d. centromere : chromatid
_____ 23. homologous pair : chromosomes ::
a. chromatid : chromosomes
b. egg : gametes
c. chromosome: chromatids
d. gamete : zygotes
_____ 24. prophase : telophase ::
a. prophase : metaphase
b. metaphase : anaphase
c. anaphase : telophase
d. telophase : metaphase
_____ 25. metaphase : meet ::
a. anaphase : separate
b. prophase : double
c. telophase : double
d. telophase : lineup
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science: Biology
18
Sexual Reproduction and Meiosis
Name ______________________________ Class ___________________ Date __________________
Skills Worksheet
Sexual Reproduction and Meiosis
Work-Alikes
In the space provided, write the letter of the term or phrase that best describes
how each numbered item functions.
a. bees returning to the
hive
b. a meeting
c. shuffling a deck of
cards
d. raindrops joining
together
e. other half of a baseball
inning
f. changing dance
partners
g. pulling apart string
cheese
h. breaking a container
and water spills
_____ 1. anaphase I
_____ 2. crossing-over
_____ 3. metaphase I
_____ 4. meiosis II
_____ 5. telophase I
_____ 6. prophase I
_____ 7. independent assortment
_____ 8. random fertilization
Cause and Effect
In the space provided, write the letter of the term or phrase that best matches each
cause or effect given below.
Cause
9. _________________
10. meiosis I and II
11. _________________
12. repair of damaged
DNA
Effect
first cell of new
individual
___________________
gametes join by fusion.
___________________
a. gametes
b. eggs and sperm join
c. all cells of
organisms are
haploid cells
d. possible
explanation of
evolution of sexual
reproduction
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science: Biology
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Sexual Reproduction and Meiosis
Name ______________________________ Class ___________________ Date __________________
Sexual Reproduction and Meiosis continued
Trade-offs
In the space provided, write the letter of the bad news item that best matches each
numbered good news item below.
Good News
Bad News
a. Organisms must use
energy to produce
gametes and find
mates.
b. The ability to obtain
larger animals slows
down.
c. They may be at a
disadvantage in a
changing environment.
d. Two polar bodies
produced die.
_____ 13. Agricultural breeding
increases the sizes of
domesticated animals.
_____ 14. The ovum produced by
oogenesis is very large.
_____ 15. Asexual reproduction
allows organisms to
reproduce quickly.
_____ 16. Sexual reproduction
makes different
combinations of genes
quickly
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science: Biology
18
Sexual Reproduction and Meiosis
Name ______________________________ Class __________________ Date __________________
Linkages
In the spaces provided, write the letters of the two terms or phrases that are linked together
by the term or phrase in the middle. The choices can be placed in any order.
17. ______ meiosis II ______
18. ______ independent assortment ______
19. ______ crossing-over ______
20. ______ individuals split off ______
a. budding in hydra
b. four chromatids line up in
prophase I
c. gametes
d. meiosis I
e. asexual reproduction
f. recombination of genes in
gametes
g. unpaired chromosomes in
gametes
h. pairs of chromosomes in
organisms
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science: Biology
18
Sexual Reproduction and Meiosis
Name ______________________________ Class __________________ Date __________________
Sexual Reproduction and Meiosis continued
Analogies
An analogy is a relationship between two pairs of terms or phrases written as
a : b :: c : d. The symbol : is read as “is to,” and the symbol :: is read as “as.” In the space
provided, write the letter of the pair of terms or phrases that best completes the analogy
shown.
_____ 21. chromatids : crossing-over ::
a. gametes : chromosomes
b. metaphase : anaphase
c. hook : fishing rod
d. tires : changing flat tire
_____ 22. asexual reproduction : clone ::
a. spermatogenesis : ovum
b. fission : budding
c. meiosis : gamete
d. fragmentation : budding
_____ 23. haploid life cycle : fusion ::
a. diploid life cycle : fusion
b. diploid life cycle : fertilization
c. fertilization : gametes
d. gametes : fertilization
_____ 24. sporophyte : spore ::
a. sexual reproduction : clone
b. spore : sporophyte
c. gamete : spore
d.gametophyte : gamete
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science: Biology
18
Sexual Reproduction and Meiosis
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science: Biology
18
Sexual Reproduction and Meiosis