An organism has the chromosomes shown below. Let the period represent the centromere. LMNO.PQRST and LMNQP.ORST Assume that a single crossover occurs between the P and Q loci in this individual. Which of the following are gametes that this individual will produce. Select all that apply. Select one or more:
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- in the experiment of following chromosomal dna mvement througgh meiosis, why. do you use non-sister chromatids to demobstrate crossing over? what combinatiobns of alleles could result from a crossover between BD and bd chromosomes? Identify two ways that meiosis contributes to genetic recombination. Why is it necessary to reduce the number of chromosomes in gametes, but not in other cell?Based on the ideas proposed by Morgan, which of the followingstatements concerning linkage is not true?a. Traits determined by genes located on the same chromosome arelikely to be inherited together.b. Crossing over between homologous chromosomes can create newallele combinations.c. A crossover is more likely to occur in a region between two genesthat are close together than in a region between two genes that arefarther apart.d. The probability of crossing over depends on the distance betweenthe genes.e. Genes that tend to be transmitted together are physically located onthe same chromosomeOn average, what proportion of the genome in the following pairs ofhumans would be exactly the same if no crossing over took place? (Forthe purposes of this question only, we will ignore the special case of theX and Y sex chromosomes and assume that all genes are located onnonsex chromosomes.)a. Father and childb. Mother and childc. Two full siblings (offspring that have the same two biological parents)d. Half siblings (offspring that have only one biological parent incommon)e. Uncle and niecef. Grandparent and grandchild
- If we call the amount of DNA per genome “x,” name asituation or situations in diploid organisms in which theamount of DNA per cell isa. xb. 2xc. 4xA diploid species with 44 chromosomes (i.e., 22 per set) is crossedto another diploid species with 38 chromosomes (i.e., 19 per set).What information do you know based on the question and your understanding of the topic?Which of the following best describes the concept of independent assortment? Group of answer choices a. 2n, where n = number of chromosomes b. Gametes receive one of each chromosome pair but which chromosome it receives is decided randomly c. Refers to the Mendelian genetics d. Independent assortment always occurs at prophase 2 in eukaryotic organisms. e. Is the process of specified segregation and assortment of chromosomes in an organism.
- A. How many gamete classes would be formed from the following genotype: Tt Rr Ss Gg Yy? B. Deduce a simple formula for predicting the classes of gametes formed for heterozygous, diploid organisms, that can take into account number of genes being considered. Tt; TtRr; AaTtRr.A diploid species with 44 chromosomes (i.e., 22 per set) is crossedto another diploid species with 38 chromosomes (i.e., 19 per set).Define key terms. Make a calculation. Predict the outcome.CC DD and cc dd individuals were crossed to eachother, and the F1 generation was backcrossed to thecc dd parent. 997 Cc Dd, 999 cc dd, 1 Cc dd, and 3 ccDd offspring resulted.a. How far apart are the c and d loci?b. What progeny and in what frequencies would youexpect to result from testcrossing the F1 generationfrom a CC dd × cc DD cross to cc dd?c. In a typical meiosis, how many crossovers occurbetween genes C and D?d. Assume that the C and D loci are on the samechromosome, but the offspring from the testcrossdescribed in part (b) were 498 Cc Dd, 502 cc dd,504 Cc dd, and 496 cc Dd. How would your answer to part (c) change?
- Based on the data in Table 1, which individual(s) is/are heterozygous? Select all that apply a) B IV-8 b) C IV-3 c) B IV-9 d) A IV-3What event/s during meiosis is simulated by the flipping of the coin? Explain these events briefly. Independent/Random Assortment. Explain why? briefly pleaseor each of the following genotypes how many gametes would be made? a. AaBb - b. AaBbCC - c. AABbCcdd - d. AabbCcDd -