Explain sex-linked inheritance and how it differs fronm autosomal modes of inheritance. explain how this difference impacts the appearance of a sex-linked genetic disease in a human pedigree. also explain x inactivation and how this affects gene expression in human females and the expression of x-linked genetic disease in human females. general sex-linked details, x linked disease details, x inactivation details.

Dna is always read in the whereas rna is read in .

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.