TTU BIO 1403 - Exam -3 Questions & Answers (Grade A+).docx

TTU BIO 1403 - Exam #3 Questions &
Answers (Grade A+)
How many chromosomes do humans have? -
correct answer ✅46 (23 pairs)


Gametes -
correct answer ✅sex cells; eggs and sperm


Diploid -
correct answer ✅containing two complete sets of chromosomes,
one from each parent. (2n)


Haploid -
correct answer ✅(genetics) an organism or cell having only one
complete set of chromosomes (1n)


Ploidy -
correct answer ✅number of sets of chromosomes in a cell


homologous chromosomes -
correct answer ✅Chromosomes that have the same sequence of
genes and the same structure

, TTU BIO 1403 - Exam #3 Questions &
Answers (Grade A+)
Meiosis -
correct answer ✅cell division that forms gametes (sex cells)


Mitosis vs. Meiosis -
correct answer ✅Mitosis: one division forming 2 identical cells
(clones);
Meiosis: two divisions forming 4 genetically different cells


Meiosis I -
correct answer ✅Prophase I, Metaphase I, Anaphase I, Telophase I


Meiosis I: prophase I -
correct answer ✅crossing over
- recombiant chromosomes make for variety in genetics


Meiosis I: metaphase I -
correct answer ✅"middle"
chromosome pairs align at the cell equator


Meiosis I: Anaphase I -
correct answer ✅"away"