Answer:
The correct answer is "Females are mosaic for the expression of heterozygous X-inked loci because females undergo random X-inactivation".
Explanation:
This study reports that pairs of male twins tended to be more alike in their prosocial behavior, peer problems, and verbal ability scores than pairs of female twins. This is explained by the process of random X-inactivation in pairs of female twins. Random X-inactivation is the transcriptional silencing of one X chromosome in female cells during its development. This results in pairs of female twins being mosaic for the expression of heterozygous X-inked, making female twins actually not identical in its phenotype.
The small intestine can absorb nutrients such as carbs, lipids, proteins, iron, vitamins, and water.
Nutrients that are fat soluble are kept in adipose tissues. The chylomicrons in the small intestine absorb these nutrients into the lacteals, where they are then carried through the lymphatic system and discharged into the bloodstream.
Small intestine villi that line the walls absorb nutrients into lymphatic lacteals and capillaries of the circulatory system. Capillary beds and lacteal-like lymphatic channels can be found in villi. The lacteals take in fatty acids from the chyme after it has been broken down.
Following that, nutrients are absorbed through the small intestinal wall. The fat-soluble vitamins enter the lymph vessels after absorption before moving on to the bloodstream.
Learn more about the Digestive system here:
brainly.com/question/18639907
#SPJ4
It's number four, i remember it in the lesson. FLVS right?
Answer:
Pleiotropy
Explanation:
Marfan syndrome is an example of pleiotropy, which can be defined as the phenomenon in which a pair of allele genes conditions the appearance of several traits in the same organism.
All of these traits occur through the action of only one pair of genes, so pleiotropy shows that the idea that each gene affects only one trait is not always valid.
In other words, a pleiotropic gene can have an effect on several phenotypes at the same time, due to the fact that the mutated gene is used by a group of cells (or targets) that have the same signaling function.
