T/F: twenty-three chromosome pairs in a human karyotype are similar in size and shape in a human male. (Change wording if wrong)
T/F: if a organism has 16 chromosomes in each of its egg cells, the organism's diploid number is 8.
false, 32 (for diploid number)
Which of the following happens when a cell divides?
-the cell's volume increases
-it becomes more difficult for the cell to get enough oxygen and nutrients
-the cell has DNA overload
-each daughter cell receives its own copy of the parent cell's DNA
each daughter cell receives its own copy of the parent cell's DNA
During normal mitotic cell division, a parent cell having 4 chromosomes will produce two daughter cells, each having ____ chromosomes
During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases ____
because of base pairing in DNA, the percentage of _______ molecules in DNA is _____ to the percentage of thymine molecules
DNA replication results in two DNA molecules, each with _______
one new strand and one original strand
The Watson and Crick model of DNA is a(n) ____, in which two strands are wound around each other.
What would the effect be if the gametes of a species had the same number of chromosomes as the species' body cells?
during fertilization, a 2n cell and a 2n cell would combine, creating a 4n zygote
What happens to the number of chromosomes per cell during meiosis?
it is reduced to N, half its original number