Draw a Punnett square to illustrate this cross. On the Punnett square, label: gamete, offspring, haploid, diploid What percentage of the puppies will be brown?
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- A homozygous black lab and a homozygous brown lab produce a litter of puppies.
- Draw a Punnett square to illustrate this cross.
- On the Punnett square, label: gamete, offspring, haploid, diploid
- What percentage of the puppies will be brown?
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- If an organism's diploid number is 66, it's haploid number isThis figure shows a grasshopper testis with differential staining and viewed under a microscope. Encircle the cell and label the specific stage in meiosis it displays. Identify as many as you can with a minimum of two cells representing different stages. Make sure to specify whether the stage belongs to meiosis I or II. If you identify a cell at prophase I, then specify the substageA cat germ cell has a haploid number of 19 chromosomes.Complete the following table by stating the number of cells, the number of chromatids, and the number of chromosomes at the end of each of the following stages of meiosis and mitosis. (Please note this is an emply chart, I'm unsure why it got declined last time because it is not graded) Meiosis Meiosis Mitosis Prophase I Telophase I Telophase Number of cells Number of Chromatids Number of Chromosomes
- Diagram 1: Diagram 2:, Draw a line down the middle of the page. On the LEFT side of the line, draw and label the following stages of Meiosis (in order): Metaphase I (one circle at the top of the page), Metaphase II (two circles, in the middle of the page) and gamete (four circles, at the bottom of the page). Start with a cell that is 2n=4 with two large and two small chromosomes. Make one “set” (one large and one small chromosome) the same color, and the other set a different color. Label one of the large chromosomes with allele “A” and the other allele “a”, like we did in class. Label one of the small chromosomes with allele “B” and the other allele “b”.) For replicated chromosome draw an X and for single chromatids draw a line ( / ). Since we are focusing on the DNA, you can skip drawing the nuclear membrane or spindle fibers. For simplicity, do not indicate crossover in your diagrams. Now on the right side of the line on your page, please draw the second independent way homologs could line up Metaphase…The cells seen below were stained with Acetocarmine. Scales indicate 20 micrometers. Please explain what stages of meiosis are visible in cells labelled A through F. Give reasons for each stage of meiosis you consider the cell to be in. A В C D E F
- Referring to Figure 17-32, draw an inviable product fromthe same meiosisUSING TWO DIFFERENT COLORS TO SIGNIFY THE MATERNAL AND PATERNAL CHROMOSOMES, DRAW THE RESPECTIVE CELLS IN EACH LABELED PHASE OF MITOSIS AND MEIOSIS. THE CHROMOSOME NUMBER WILL BE "4" AND SHOULD BE REPRESENTED AS TWO HOMOLOGOUS PAIRS. MAKE SURE YOU USE TWO DIFFERENT SIZES FOR EACH OF THE PAIRS. BELOW EACH PHASE, BRIEFLY DESCRIBE WHAT HAPPENS. MITOSIS ΜEIOSIS I MEIOSIS II Crossing over needs to be illustrated ACCURATE CELL NUMBER IS NEEDED МЕТАРНАSE ΑΝΑΡHASE МЕТАРНASEI ANAPHASE I МЕТАРНАSE II ANAPHASE IITwo haploid yeast with the genotypes HIS4 LEU2 LYS2 and his4 leu2 lys2 were mated to produce diploid yeast. Next, the resulting diploid yeast went through meiosis and formed haploid spores. Read the 4 statements below. For each statement, either put “yes” if you agree with it or put “no” if you don’t. Explain your logic. yes/no 1. Half of the spores will be His+ and half will be His- 2. Half of the spores will be Leu+ and half will be Leu- 3. Half of the spores will be Lys+ and half will be Lys- 4. Half of the spores will be His+ Leu+ Lys+ and half will be His- Leu- Lys-
- Refer to the drawings in the figure below of a single pair of homologous chromosomes as they might appear during various stages of either mitosis or meiosis, and answer the following questions. II IV VI Which diagram represents anaphase I of meiosis? CI II IV 0000The gene asSociated with the recessive disorder hemophilia is on the X chromosome, where h is the recessive copy and H is the dominant copy. The picture ("starting cell") shows a diploid cell from a male who has hemophilia, showing his X and Y chromosomes. Starting cell Xh Y Which of these pictures A-E will NOT occur at any time in meiosis of this starting cell? Select ALL that apply. D Xh Xh C YIY В X YI YY E Xh Y A X Xh ¡YYDrag the X and Y chromosomes to the drawings below, lining them up properly for metaphase I and metaphase II of meiosis for a male. A pair of autosomes is already included in the drawings, and a diploid cell is shown at the left for reference. Diploid cell Autosomes X YY 8 a Sex chromosomes Metaphase II Gametes Metaphase I A X { Xy Xy aa XX AA aa XX YY X X XX a a
