In humans, dosage compensation is accomplished by:  inactivating one X chromosome in female somatic cells  inactivating one homolog from each homologous pair of chromosomes in female somatic cells  inactivating the Y chromosome in male somatic cells  increasing gene expression from the X chromosome in male somatic cell

What role does reverse transcription play in chromosomal maintenance?  Give typing answer with explanation and conclusion

Recall that the nuclear membrane disintegrates late in prophase of mitosis in most eukarvotic cells. Once the membrane is reformed in telophase in a daughter cell, several components of gene expression mignt therefore be "caught" out in the cytoplasm when they would otherwise onlv ever be found inside the nucleus. Consider where the following components of gene expression are made and where they runction. Which component is normally never found in the cytoplasm outside the nucleus? O A. Spliced intron • B. RNA polymerase O C. Histones • D. DNA polymerase

Cystic fibrosis is a disease that occurs when an individual carries two copies of a recessive version of a membrane transport gene. A person that is a carrier for cystic fibrosis (that means they carry one copy of the gene that causes cystic fibrosis but their other copy is normal - they do not have cystic fibrosis) has a child with another person that is also a carrier for cystic fibrosis. What is the probability that this couple has three children that do not have cystic fibrosis AND are also not carriers of cystic fibrosis? 0.25 0.422 0.016 2.25 0.75

In a mutant mouse, it was discovered that a gene "W" is moved from its original chromosomal locus to the telomere region, where chromatin is packed into heterochromatin. Given what we have learned about eukaryotic gene regulation, can you speculate how the expression of gene W in the new mouse line would be changed as compare to the normal mouse?   Question 18 options:   elevated in the mutant mouse than in the wild-type mouse.   cannot be determined.   reduced in the mutant mouse than in the wild-type mouse.   no change in the mutant mouse as compared to the wild-type mouse.