& ANSWERS(RATED A)
the purpose of meiosis is - ANSWERto produce haploid gametes
mitosis and cell division are likely to occur
a) during regeneration to replace lost body parts
b)when a cut causes cells to be damaged
c) when a cell reaches a certain surface-to-volume ratio as it grows
d) all of the above - ANSWERall of the above
the structure that holds sister chromatids together is called a - ANSWERcentromere
human body cells contain two sets of chromosomes totalling - ANSWER46
which event occurs before the division phase of the cell cycle? - ANSWERDNA
replication
which event occurs after the division phase of the cell cycle? - ANSWERDNA replication
the microtubules that appear in the cell and eventually move the chromatids apart is the
- ANSWERspindle
a subject is identified as a human male by looking at a karyotype. what would you
expect to see in the karyotype? - ANSWER44 autosomes and two different sex
chromosomes
crossing over is the exchange of genetic material between homologous chromosomes
during - ANSWERprophase
the chromosomes line up at the equator of the cell during - ANSWERmetaphase
the first stage of mitosis, when chromatin becomes visibly shorter and thicker -
ANSWERprophase
between meiosis I and meosis II, there is - ANSWERno replication of DNA
meiosis in humans results in the formation of - ANSWER4 haploid cells
at the end of yelp jade I of meiosis, each end of the original cell contains - ANSWERa
haploid set of chromosomes, each with two chromatid
before crossing over occurs, a tetrad contains - ANSWERtwo pairs of sister chromatid