Biology Crossword Puzzle Template Page 2
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22/29/2016
Chapter 13
homologs 64 trillion anaphase karyotype cytokinesis crossing over metaphase
anaphase klinefelter same turner sister chromatids down chromatids independent
assortment centromere prometaphase half telophase mitosis meiosis
chromosomes 8 million random fertilization chiasma haploid increases 46 four
recombinant two prophase synapsis mutation sister chromatids
Across
Down
2. After Meiosis I, there are two ______ (ploidy level)
1. ______ generates the gametic cells in the gonads.
cells that have formed.
3. Meiosis ______ genetic variation in populations of
5. Humans have _____ chromosomes.
organisms.
6. Joint point where the two sister chromatids meet.
4. Any 2 humans will produce a zygote with any of
7. _______ is the pairing of homologous chromosomes
_______ diploid combinations.
(forms a tetrad) during Prophase I.
9. _________ is the random orientation of homologous
8. In Meiosis I, ______ line up on the metaphase plate
chromosome pairs at mid-cell during Metaphase I.
and separate during anaphase I.
11. _______ is the genetic rearrangement between
10. During ______ in Meiosis I, homologous
non-sister chromatids.
chromosomes separate by having the dyads pulled
12. A stage in mitosis and meiosis during which the
toward the opposite ends of the cell.
nuclear envelope breaks down and microtubules attach
13. _____ syndrome is due to an extra chromosome
to kinetochores.
and leads to an incomplete development of testicles.
15. The final stage in mitosis and meiosis I & II during
14. Meiosis I separates the ________.
which daughter chromosomes have separated and new
16. In Meiosis II, ______ line up on the metaphase
nuclear envelopes begin to form around each set of
plate, and separate during anaphase II.
chromosomes.
20. _____ syndrome is due to an extra chromosome
17. _____ is the number of daughter cells produced
and leads to delayed development.
during mitosis.
21. ______ is the constant, random production of
18. An organisms _______ is the various shapes and
modified genes by changing DNA sequences.
number of chromosomes that the organism has.
24. During ______ in Meiosis I, tetrads line up at the
19. Crossing over produces _______ chromosomes
middle of the cell.
during Prophase I.
25. The number of chromosomes in the daughter cells
22. Each gamete has _____ possible combinations.
compared to the parent cells in mitosis are (same/half)?
23. Division of the cytoplasm to form daughter cells.
26. _____ syndrome is due to missing chromosomes.
27. Meiosis II separates the ________.
29. ________ is due to a random sperm entering a
28. The first stage in mitosis and meiosis I & II during
particular egg.
which chromosomes become visible and the spindle
31. The number of chromosomes in the daughter cells
apparatus forms.
compared to the parent cells in meiosis are
30. _____ is the number of daughter cells produced
(same/half)?
during meiosis.
32. _______ is the site where crossing over occurs.
33. ______ generates all the somatic cells in the body.
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