Answer:
d. Monosomy X is the only viable monosomy known to occur in humans.
Explanation:
Human have 22 pair of homologous chromosomoses and an extra pair of sex chromosomes. While in males the sex chromosomes are X and Y , females have two chromosomes X . Anyway, in normal conditions the total number of chromosomomes that humans have in their cells is 46 (23 pair of chromosomes).
Aneuploidy is a biological condition where an individual have an abnormal number of chromosomes in their cells. In humans for examples, this would be a human having more or less than 46 chromosomes.
The Turner syndrome also called monosomy X is an aneuploidy where one of the X chromosomes is missing in a female. Although under constant supervision, people with Turner syndrome have viable healthy lives. However this is the only monosomy that occur in humans that is compatible with life.
Chronic jetlag can cause cognitive deficits that can be permanent. This happens because the normal circadian rhythm of the body is disrupted. The endogenous system of circadian timing in the body adapts slowly. This disturbance can impair the physical and psychological health of the person.
<span>Human sweat is a result of our body getting over heated. We sweat through our pores so our temperatures don't go up and as a result we stay at a normal temperature. We may feel hot but that's because we are hot from the heat of something. If we didn't sweat then our temperature would become very high and we would die.</span>
Answer:
The correct answer is - option A. aldosterone.
Explanation:
Aldosterone is secreted by the Zona glomerulosa of the adrenal cortex of the adrenal gland. It is mineralocorticoid which is a steroid hormone that signals the kidney to prevent sodium ion and water in case of low blood pressure and volume in vessels. To save the water and ion of salts it promotes the reabsorption and leads to low urine output.
On another hand, ANP or atrial natriuretic peptide which release from the heart and enhances the urine output in response to high blood volume and pressure as it ceases the release of the Aldosterone.
Thus, the correct answer is - option A.
Enzymes are typically composed of amino acids.
Enzymes specifically binds to their substrate, and accelerate the biological or in-vitro reactions.
Four real-life examples of enzymes are: Lipase, Maltase, DNA ploymerase and Alcohol dehydrogenase.
Explanation:
All enzymes are proteins. They are composed of amino acids as monomer units linked by polypeptide bonds.
The substrate is a molecule which has specific enzyme binding sites for the highly specific enzyme called as active sites. With this binding, the enzyme-substrate complex is formed, undergoes the chemical reaction and new product is formed. Enzymes accelerate the biological reactions by lowering the reaction's activation energy.
Four-real life examples of enzymes are:
Lipase enzyme: catalyses the hydrolysis of fats and triglycerides in the small intestine. Lipase enzyme is secreted by pancreas.
Maltase enzyme: catalyses the breakdown of maltose sugar. It is secreted by salivary glands and our mouths.
DNA Polymerase Enzyme: It catalyses the DNA replication in the cells. It is secreted by the nucleus
Alcohol dehydrogenase: It catalyses many reactions in the body as the reduction of NAD to NADH. It is secreted by the liver.
