Bio112 Exam #2 Verified Exam Questions and Answers Latest update
2026/2027
Question:
What is the diploid number of chromosomes in humans?
Answer:
46 (2n = 46)
Question:
What is the haploid number of chromosomes in humans?
Answer:
23 (n = 23)
Question:
What are homologous chromosomes?
Answer:
Chromosomes that are the same length and shape and carry genes controlling the same inherited
characters (alleles).
Question:
What is the process of meiosis?
Answer:
Meiosis is a type of cell division that reduces the number of chromosome sets from diploid (2n) to
haploid (n).
Question:
How many daughter cells are produced at the end of meiosis?
Answer:
Four haploid daughter cells.
Question:
What occurs during interphase before meiosis?
Answer:
Chromosomes duplicate in size, resulting in sister chromatids.
, Question:
What is sister chromatid cohesion?
Answer:
The close association of sister chromatids along their lengths, held together by cohesin proteins.
Question:
What happens during meiosis I?
Answer:
Homologous chromosomes separate, resulting in haploid cells with duplicated chromosomes.
Question:
What happens during meiosis II?
Answer:
Sister chromatids separate, resulting in haploid cells with unduplicated chromosomes.
Question:
What is crossing over?
Answer:
The process during prophase I where non-sister chromatids exchange genetic material at points called
chiasmata.
Question:
What is the synaptonemal complex?
Answer:
A protein structure that forms between homologous chromosomes during meiosis, facilitating synapsis
and recombination.
Question:
What is the significance of chiasmata?
Answer:
Chiasmata are the points where crossing over occurs, contributing to genetic variability.
Question:
What are autosomes? The 22 pairs of chromosomes in humans that are not sex chromosomes.
Answer:
2026/2027
Question:
What is the diploid number of chromosomes in humans?
Answer:
46 (2n = 46)
Question:
What is the haploid number of chromosomes in humans?
Answer:
23 (n = 23)
Question:
What are homologous chromosomes?
Answer:
Chromosomes that are the same length and shape and carry genes controlling the same inherited
characters (alleles).
Question:
What is the process of meiosis?
Answer:
Meiosis is a type of cell division that reduces the number of chromosome sets from diploid (2n) to
haploid (n).
Question:
How many daughter cells are produced at the end of meiosis?
Answer:
Four haploid daughter cells.
Question:
What occurs during interphase before meiosis?
Answer:
Chromosomes duplicate in size, resulting in sister chromatids.
, Question:
What is sister chromatid cohesion?
Answer:
The close association of sister chromatids along their lengths, held together by cohesin proteins.
Question:
What happens during meiosis I?
Answer:
Homologous chromosomes separate, resulting in haploid cells with duplicated chromosomes.
Question:
What happens during meiosis II?
Answer:
Sister chromatids separate, resulting in haploid cells with unduplicated chromosomes.
Question:
What is crossing over?
Answer:
The process during prophase I where non-sister chromatids exchange genetic material at points called
chiasmata.
Question:
What is the synaptonemal complex?
Answer:
A protein structure that forms between homologous chromosomes during meiosis, facilitating synapsis
and recombination.
Question:
What is the significance of chiasmata?
Answer:
Chiasmata are the points where crossing over occurs, contributing to genetic variability.
Question:
What are autosomes? The 22 pairs of chromosomes in humans that are not sex chromosomes.
Answer:
