Please tell what to color for each parts During the reproductive process, the female cell undergoesmeiosis in the ovary and produces a set of gametes (G),enclosed by a bracket. The bracket should be colored in a darkcolor. Notice that both egg cells (H) are identical, in that bothcarry an X chromosome. Since a gamete receives one chromo-some of a chromosome pair, all of the mother's egg cells will havean X chromosome.Now look at the left side of the plate. The father's cell under-goes meiosis in the testes to produce two types of sperm cells(I): one with the X chromosome (E), and one with the Y chromo-some (F). Either of the two types of sperm cells may fertilize theSEXDETERMINATIONChromosomes can be distinguished from one another bytheir appearance; they differ both in size and in the position oftheir centromere. Human cells have 46 chromosomes in total, butthese chromosomes can be matched in pairs: There are two ofeach type, and these pairs are called homologous chromosomes.For this reason, we can say that there are 23 pairs of homologouschromosomes in each cell. The exception to this is the two sexchromosomes, designed X and Y. Human females have a pairof homologous X chromosomes, but human males have one Xchromosome and one Y chromosome, and the Y is significantlysmaller than any of the other chromosomes. The X and Y chro-mosomes are called the sex chromosomes, while the others arereferred to as autosomes.egg cell.We now will see the possible crosses that can result.Continue your reading below as you color the appropri-ate diagrams in the plate.Because the male produces equal numbers of sperm cellsthat have X and Y chromosomes, there is a 50% chance that anX-bearing sperm cell will fertilize the egg cell in the ovary. Thereis also a 50% chance than a Y-bearing sperm cell will fertilize thecell. In the Punnett square, the first row shows the offspring whenan X-bearing sperm fertilizes the egg; both offspring are female(B). Now look at the bottom row of the square; when a Y-bearingsperm cell has fertilized the egg cell, both offspring are male (A).In effect, the sperm cell determines the sex of the offspringindividual, since the woman's sex cells are identical for eachpregnancy. The numbers of chromosomes vary in different ani-mals, but all animals have one set of sex chromosomes.In this plate we will see how the laws of genetics deter-mine which sex chromosomes the offspring receive; thisdetermines whether they will be male or female.This plate presents a simple monohybrid cross between amale and female. We will follow one pair of chromosomes, thesex chromosomes. Start your work by looking over the plate asyou read about sex determination.In this plate, we show a male (A) and a female (B).A cell from each of the individuals is shown, and the malecell (C) possesses two different chromosomes. One is the Xchromosome (E) and the other is the Y chromosome (F).Use red and green to distinguish these chromosomes, and noticethat the Y chromosome is smaller than the X. In the female cell(D), we see two identical X chromosomes.Now we have seen how the cells of males and femalesdiffer in the sex chromosomes they contain. We willnow follow the pattern of inheritance of sex chromo-somes. Continue your reading as you color the appro-priate parts of the plate. O O OMaleFemale CellGametesA.D.FemaleB.Male CellX ChromosomeE.Y ChromosomeF.Egg CellSperm Cell I

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