Based on its function, the heart is often referred to as a “double pump”. Which of the following would explain this?
If a newborn was blood type O+, which of the following would his blood not contain?
Which of the following might trigger erythropoiesis?
This is the process of making new red blood cells The process is done within the bone marrow, and is done when there is free erythropoietin (EPO) in the blood. Due to endogenous EPO's ability to increase red blood cell count, it has become a banned substance in sport.
Hypoxia of EPO-producing cells.- CORRECT : hypoxia of anywhere in the body may trigger the release of EPO, and the creation of new red blood cells
Increased number of RBCs.- Incorrect: this decreased number of RBCs would do this
Moving to a lower altitude.Incorrect: oxygen is more saturated at lower altitudes, so the inverse would be true.
Decreased tissue demand for oxygen.-Incorrect:- this would not cause the making of new RBCs, but the opposite would.
Goitre can occur as a consequence of all the following except
Melanocyte stimulating hormone(MSH) is secreted by pituitary
Pituitary gland has two parts:
So, the correct answer is 'Median lobe'.
Albinism is known to be due to an autosomal recessive mutation. The first child of couple with normal skin pigments was albino. What is the probability of their second child will also be an albino?
Which of the following is the third cleavage of frog's development?
First and second cleavage in frog are holoblastic, complete, equal, vertical, whereas third cleavage is holoblastic, complete, unequal, latitudinal or Horizontal and near the animal pole. It results in the formation of 8 cells of thee are black micromeres which have less or no yolk, so divide faster and 4 are colorless macromeres.
Male cockroach can be distinguished from female cockroach through