In Utero epigenetic changes in gene expression related to Immune function may be related to the development of Multiple Choice fraternal twins. sexual differentiation. autism. androgen Insensitivity syndrome.
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Step 1: The question asks which of the given options (fraternal twins, sexual differentiation, autism, androgen insensitivity syndrome) may be related to in utero epigenetic changes in gene expression related to immune function. Show more…
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Certain genes have apparently unusual inheritance patterns. For instance, in the mouse autosomal gene H19, only the copy inherited from the mouse's mother is expressed. Conversely, in the mouse autosomal gene Igf2, only the copy inherited from the mouse's father is expressed. The consequence of this is that imprinted genes are expressed as if they were present in only one copy, even though there are two copies of each of these genes in each cell. What process or processes are responsible for this phenomenon? (Select all that apply.) None of the answer options is correct. Combinatorial gene regulation, epigenetic inheritance, X-chromosome inactivation, Mendelian inheritance.
Adi S.
These terms should be a key part of your answer: Barr bodies, Xist gene, Xist RNA, methylation, silencing. 3. The Klinefelter’s abnormalities (XXXY, XXXXY, XXXYY, XXYY) or Poly X Syndrome (XXXX), show some mental impairment, but not to the degree of Trisomy 21. The following two hypotheses have been proposed. What are the implications of each hypothesis for the syndromes above? a. X-inactivation occurs ~16 days after fertilization. b. A few genes on the pseudo-autosomal regions of the ‘X’ chromosomes escape inactivation. 4. Why are Trisomy 21 children (47, 21) mentally impaired due to the extra autosomal genes, but the following trisomies or monosomies are typically of normal intelligence? a. Poly X syndrome (47, XXX) b. Klinefelter’s Syndrome (47, XXY) c. Jacob’s Syndrome (47, XYY) d. Turner’s Syndrome (XO)
Sri K.
Which of the following phenomena are examples of "unprogrammed" transgenerational epigenetic inheritance?
Jenny W.
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