Question

draw the Cario type for species X in the box below an exampleCario Type of shown on page 1 of the chapter 10 class notes as in humans larger chromosomes are given a lower number you should number your commission papers and used to color shades as a figure what to distinguish homologs with in pairs you don't need to label a little it's in your Keio type.

Only question 6-7 please

Bio 190, HW 4, Ch 9-10, Due date posted on Canvas MUST BENEATH CREDIT COMPLETE as many PRACTICE DRAFTS as newy. Acell nucleus for species X is shown in Figure 1 before reproductive cell division, but after the chromosomes have replicated their DNA. condensed, and paired with their homolog. The different sizes distinguish the different chromosome pairs. One genc locus is labeled on cach chromosome pair, with different letters denoting a different allele (gene message'). Different shading (black & grey) distinguishes homolog inheritance within a pair (gray from father, black from mother). So in this case, the A, E, gallcles were inherited from the father and Galleles were inherited from the mother 1. The cell undergoes to produce gametes. 2. The cell is Chaploid or diploid) at the stage in Fig. 1. 3. The total chromatids in Fig. 1is_ 4. If the DNA mass during G, for one cell of species Xis-3 picograms, the DNA mass at the stage in Fig. I should be about __picograms. Fig. 1 5. After reproductive cell division, a gamete for specics X otto ata Species X would have chromosomes. how many 6-7. Draw the karyotype for species X'in the box below. An example karyotype is shown on p. 1 of the Chioces notes & Fig.10. of the textbook). As in humans, larger chromosomes are given a lower number. You should number your chromosomes pairs & use a colors/shades as in Fig. 1 to distinguish homologues within a pair. You don't need to labdallcles in your karyotyper show banding patterns * ENE ele 8-17. In the larger circles below, draw 2 possible pairs of daughter cells after meiosis 1. For full crodit, a) make sure your pairs are different from each other, b) make sure to label allcles and that the alleles are consistent with the parentage shown in Fig. 1 (indicated by color/shading), and c) make sure each cell has the correct number of chromosomes & chromatids per chromosome. Even thought-3 crossovers typically occur between homologs, assume no crossing over and no errors in division. Possible pair : Possible par 2- daughter daughter 2 daughter daughter Divide wil by misis 2 ist 2 dagars OO Jooo Divide above cell bycosis 2 into 2 do In the smaller circles at left. draw the daughter cells of posible pair i after meiosis 2. Make sure your chromosomes alleles & colors are consistent with what you drew for pair 18. How many possible different daughter cells could occur after the first division for this cell, assuming no division errors, no mutation, and no crossing over? _Note malcol net total pains] 19. The cells are Lapidar diploch) after meiosis and Chaptrider dipil after miosis II. 20. At least how many genetically different gametes could a male with 5 homologs produce?

Answer 1

From the given figure we can understand that somatic cells of species X carries three pairs of chromosomes so the karyotype diagram (karyogram) must represent all three pairs. They have to be ordered from left to right on the basis of decreasing order of size and numbered from one, with the largest pair receiving the number '1' and then subsequent numbers assigned on the basis of decreasing order of size. Since we have the freedom to use different colours, I have used different colours for each pair of chromosomes, but the important part is to draw similar chromosomes carrying alleles of the same gene close together in pairs and to distinguish between members of the same pair with different colours or shading. Below is a typical karyogram for species X that one can draw on the basis of the information given to us.

XX XX XX 1 2 3 Species X karyotype

I hope this helps :)