Human Heredity Principles and Issues 11th Edition Cummings Test Bank Chapters 1 -19

Human Heredity Principles and Issues
11th Edition Cummings Test Bank
Chapters 1 -19




How many chromosomes do humans have? -
<<<ANSWER>>>46 (23 pairs)

How many chromosomes do male and female gametes have? -
<<<ANSWER>>>23

What does meiosis produce and what does it do? -
<<<ANSWER>>>It produces gametes and is responsible for
reducing the number of chromosomes in sex cells.

What does meiosis yield? -<<<ANSWER>>>haploid gametes,
that is gametes with half the number of chromosomes of a
normal diploid body cell.

How many cell divisions does meiosis have? -
<<<ANSWER>>>2 cell divisions

, what are the phases of meiosis -<<<ANSWER>>>Prophase I,
Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase
II, Anaphase II, Telophase II

When do chromosomes duplicate? -<<<ANSWER>>>During
interphase
What happens in prophase meiosis? -
<<<ANSWER>>>Chromosomes condense
Nuclear membrane disintegrates
Homologous chromosomes pair up (Chromosome 1 from mom
and chromosome 1 from dad pair up)

Metaphase 1 of meiosis -<<<ANSWER>>>the homologous
pairs line up along the equatorial plate.

Anaphase 1 of meiosis -<<<ANSWER>>>the pairs separate
with one membrane of the pair going to each daughter cell. As a
result each daughter cell ends up with half the number of
chromosomes (23).

What is the difference between meiosis 1 and 2 -
<<<ANSWER>>>the cells start out as haploid.

What happens during interphase? -<<<ANSWER>>>The cell
grows, copies its DNA, and prepares for cell division.

What cell division takes longer? -<<<ANSWER>>>Meiosis

What is cytokinesis -<<<ANSWER>>>cytoplasmic division