BYUI Unit 2 Genetics Bio 181 EXAM COMPREHENSIVE questions answer
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1. alternation of generations a life-cycle type in which the diploid and haploid stages alternate
2. chiasmata (chiasma) the structure that forms at the cross over points after genetic
material is exchanged
3. cohesin proteins that form a complex that seals sister chromatids together
at their centimetres until anaphase
4. Crossover exchange of genetic material between non-sister chromatids re-
sulting in chromosomes that incorporate genes from both parents
of the organism
5. Fertilization union of 2 haploid cells from 2 individual organisms
6. gametophyte The multicellular haploid life cycle stage that produces gametes
7. germ cells specialized cell line that produces gametes, such as sperm and
egg
8. Interkinesis (Interphase II) brief period of rest between meiosis I and meiosis II
9. life cycle the sequence of events in the development of an organism and
the production of cells that produce offspring
10. Meiosis a nuclear division process that results in four haploid cells
11. Meiosis I the first round of meiotic cell division; referred to as reduction
division because the ploidy level is reduced from diploid to haploid
12. Meiosis II the second round of meiotic cell division following meiosis I; sister
chromatids are separated from each other, and the result is four
unique haploid cells
13. recombination nodules
, BYUI Unit 2 Genetics Bio 181 EXAM COMPREHENSIVE questions answer
2025 verified graded A+ already passed!
Study online at https://quizlet.com/_hj3pfw
protein assemblies formed on the synaptonemal complex that
mark the points of crossover events and mediate the multistep
process of genetic recombination between non-sister chromatids
14. reduction division a nuclear division that produces daughter nuclei each having
one-half as many chromosome sets as the parental nucleus; meio-
sis I is a reduction division
15. somatic cell all the cells of a multicellular organism except the gametes or
reproductive cells
16. spore haploid cell that can produce a haploid multicellular organism or
can fuse with another spore to form a diploid cell
17. sporophyte a multicellular diploid life cycle stage that produces haploid spores
by meiosis
18. synapsis the formation of a close association between homologous chro-
mosomes during prophase I
19. synaptonemal complex protein lattice that forms between homologous chromosomes
during prophase I, supporting crossover
20. tetrad two duplicated homologous chromosomes (four chromatids)
bound together by chiasmata during prophase I
21. asexual reproduction type of reproduction where unicellular organisms and a few mul-
ticellular organisms can produce genetically identical clones of
themselves
22. sexual reproduction involves the production by parents of 2 haploid cells and the
fusion of these to form a single, genetically recombined diploid
self creates a genetically unique organism
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Study online at https://quizlet.com/_hj3pfw
1. alternation of generations a life-cycle type in which the diploid and haploid stages alternate
2. chiasmata (chiasma) the structure that forms at the cross over points after genetic
material is exchanged
3. cohesin proteins that form a complex that seals sister chromatids together
at their centimetres until anaphase
4. Crossover exchange of genetic material between non-sister chromatids re-
sulting in chromosomes that incorporate genes from both parents
of the organism
5. Fertilization union of 2 haploid cells from 2 individual organisms
6. gametophyte The multicellular haploid life cycle stage that produces gametes
7. germ cells specialized cell line that produces gametes, such as sperm and
egg
8. Interkinesis (Interphase II) brief period of rest between meiosis I and meiosis II
9. life cycle the sequence of events in the development of an organism and
the production of cells that produce offspring
10. Meiosis a nuclear division process that results in four haploid cells
11. Meiosis I the first round of meiotic cell division; referred to as reduction
division because the ploidy level is reduced from diploid to haploid
12. Meiosis II the second round of meiotic cell division following meiosis I; sister
chromatids are separated from each other, and the result is four
unique haploid cells
13. recombination nodules
, BYUI Unit 2 Genetics Bio 181 EXAM COMPREHENSIVE questions answer
2025 verified graded A+ already passed!
Study online at https://quizlet.com/_hj3pfw
protein assemblies formed on the synaptonemal complex that
mark the points of crossover events and mediate the multistep
process of genetic recombination between non-sister chromatids
14. reduction division a nuclear division that produces daughter nuclei each having
one-half as many chromosome sets as the parental nucleus; meio-
sis I is a reduction division
15. somatic cell all the cells of a multicellular organism except the gametes or
reproductive cells
16. spore haploid cell that can produce a haploid multicellular organism or
can fuse with another spore to form a diploid cell
17. sporophyte a multicellular diploid life cycle stage that produces haploid spores
by meiosis
18. synapsis the formation of a close association between homologous chro-
mosomes during prophase I
19. synaptonemal complex protein lattice that forms between homologous chromosomes
during prophase I, supporting crossover
20. tetrad two duplicated homologous chromosomes (four chromatids)
bound together by chiasmata during prophase I
21. asexual reproduction type of reproduction where unicellular organisms and a few mul-
ticellular organisms can produce genetically identical clones of
themselves
22. sexual reproduction involves the production by parents of 2 haploid cells and the
fusion of these to form a single, genetically recombined diploid
self creates a genetically unique organism
