We have discovered that the vast majority of characteristics in humans are the r

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We have discovered that the vast majority of characteristics in humans are the results of polygenic inheritance and not simple Mendelian modes of inheritance. The discovery of Mendel that the unit pair (allele pair) of an individual parent are separated so that each gamete receives only one of those alleles is now called the principle of independent assortment. When considering a normally acting dominant sex-linked (x-linked) gene all affected fathers should have all affected daughters and might have no affected sons. Whenever a monohybrid cross is performed with two mutant files and results in a 2mutant: lwild phenotypic ratio in the offspring then incomplete dominance is expected as a mode of inheritance. If a gene is inherited as an autosomal dominant, and not caused by a new mutation in a particular individual, then that individual person should have had at least one affected grandparent. If two genes are located on the same chromosome and are less then 50 map units apart then it would be appropriate to refer to these genes as syntenlc but they should not be called linked. The sex-linked mode of inheritance, in chickens, involves males that are homogametic for the genes involved and females that are heterogametic for the genes involved. Crossing over (recombination) should always occur between different regions of a single dyad chromosome or said another way always between sister chromatids. If an individual female fruit fly has the following genotype AaBb, with the genes partially linked and the chromosomes in repulsion, the two types of gametes that should be in the lower numbers (in terms of gene composition) are Ab and aB. Since the section of DNA making up the origin of replication region is easily separated than other regions of DNA it would be expected to be rich in guanine-cytosine base pairs. The process of DNA duplication starts are numerous ori (origin of replication) sites on any one eukaryotic chromosome and at a single ori site on a prokaryotic chromosome. DNA polymerase I Is a good example of a RNAdependentDNApolymerase due to its role in the removal of RNAprimers. The purines, found in nucleic adds, include thymine, cytosine and uracil, which all have a double-ringed nitrogenous base structure. DNA polymerase I has both a 5'-3' exonulcease activity used during primer removal and a 3-5' exonulcease activity that is used during the process of proofreading. When DNA polymerase is performing DNA polymer chain elongation, the addition of each nucleotide involves a phosphodiester linkage being formed between the 5' end of the existing strand and the 3' carbon of the newly inserted nucleotide.

Explanation / Answer

I think you need help in questions 4th and 8th

4. FALSE as it is not incomplete dominance. The 2:1 is a typical example of lethality in which one gene causes death on an individual, hence hear the ratio is 2;1

8. It is FALSE because it's between non-sister chromatids

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