Which statement best describes the genetic makeup of gametes (sex cells) that are produced by humans? each cell has pairs of chromosomes and cells are usually genetically identical

each cell has pairs of chromosomes and cells are usually genetically different

each cell has half the number of chromosomes and cells are usually genetically different

each cell has half the number of chromosomes and cells are usually genetically identical
C

Iwill give brainiest to first person who gets it ! what are 3 basic types of interactions we see in an ecosystem?

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)

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a