Exam V Flashcards
Ch. 11 & 12 (20 cards)
The longest part of the cell cycle is usually?
Interphase
Chromosomes are duplicated during which period?
Interphase
Chromatids that are attached at the centromere are called?
sister chromatids
What is the proper sequence for mitosis?
ProMetATe
The spindle apparatus is made of:
micro-tubules
During this stage of mitosis, the chromosomes condense and become visible under a light microscope, and one of the two centrosomes moves to the opposite side of the nucleus:
Pro-phase
The chromatids are pulled apart from one another and toward opposite poles during:
Ana-phase
During this stage of mitosis, the chromosomes line up midway bw the spindle poles:
Meta-phase
The distribution of cytoplasm to daughter cells is accomplished during:
cytokinesis
what are called checkpoint gene products that inhibit mitosis?
Tumor suppressors bc tumors form when they are absent
Which of the following reproductive strategies would allow the most rapid adaptation to a changing environment?
Sexual reproduction
Sexual reproduction results in:
new combinations of genetic traits
If a parent cell has 16 chromosomes and undergoes meiosis, the resulting cells will have how many chromosomes
8
Homologous chromosomes have the following characteristics:
a. are the same size.
b. have genes for the same characteristics (even though the alleles may not be the same)
c. are in pairs, one chromosome of each pair from the father and mother.
d. pair up during meiosis
Meiosis typically results in the production of:
4 haploid cells
crossing over usually occurs in this stage of meiosis:
pro-phase I
In meiosis, homologous chromosomes separate during
Ana-phase I
sister chromatids are joined at the centromere in all stages of meiosis except:
Ana-phase II
Human gametes end up with two of each type of 23 chromosomes. True or False?
False
Gamete formation is:
the formation of sex cells
