Match the phase of mitosis with the description.
question 2 options:
cell grows, dna is copies, organelles replicate
nuclear envelope forms, chromosomes unwind, spindle fibers dissolve
chromosomes line up in the middle of the cell on spindle fibers
chromosomes are visible, nuclear envelope breaks down, spindle fibers from between centrosomes
spindle fibers pull back to the centromeres separating the sister chromatids, 2 sets of chromosomes are present
1.
anaphase
2.
interphase
3.
metaphase
4.
prophase
5.
telophase

Often, caries will develop in an area of the tooth that's not readily accessible. which cavity preparation form defines this? a. retention b. resistance c. outline d. convenience

Considering the yellow and green pea color phenotypes studied by gregor mendel: a. what is the biochemical function of the protein that is specified by the gene responsible for the pea color phenotype? (1 point) b. a null allele of a gene is an allele that does not specify (or encode) any of the biochemical function that the gene normally provides (in other words, either no protein at all or only non-functional protein is produced from it). of the two alleles, y and y, which is more likely to be a null allele? (1 point) c. in terms of the underlying biochemistry, why is the y allele dominant to the y allele? (2 points) d. why are peas that are yy homozygotes green? (1 point) e. the amount of protein produced from a gene is roughly proportional to the number of functional copies of the gene carried by a cell or individual. what do the phenotypes of yy homozygotes, yy heterozygotes, and yy homozygotes tell us about the amount of sgr enzyme needed to produce a yellow color? explain your reasoning. (2 points)

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .