A scientist formed Chemical X in a laboratory. The material was then analyzed by other scientists.
Molecular Structure
of Chemical X

Analysis showed that the chemical was composed of long chains of repeated copies of
73. CH, molecules.
A researcher noticed that a similar CH2 molecular structure was also located in
the plasma membrane of an animal cell. This CH2 molecular structure contained a negatively
charged phosphate group. Which statement best describes the primary function of the CH2
and phosphate molecular structure located in the plasma membrane?
It catalyzes specific chemical reactions in the cytoplasm of a cell.
It allows a cell to regulate the movement of materials into and out of a cell.
It contains the genetic information needed for protein production.
Et stores the energy that a cell needs to perform various life processes.
ch words best complete the lettered blanks in the two sentences below?

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)

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d