Meiosis has a lower risk of transmitting genetic disorders because it transmits only half of the parent DNA. So if there is a defect on one allele, there is a 50% chance it will not get into the following generation
A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T)
C with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G)
Answer:
granular cells of the juxtaglomerular apparatus
Explanation:
Renin or angiotensinogenase is a circulating enzyme released by granular cells of the juxtaglomerular apparatus of the kidney in response to a series of physiological stimuli and causes activation of the renin-angiotensin-aldosterone system.
Renin transforms angiotensinogen from the liver into angiotensin I, which is transformed into angiotensin II by the lungs.
All matching codons in all organisms DNA code for the same amino acids.
Option D.
<h3><u>Explanation:</u></h3>
Codons are defined as group of three nucleotide bases that forms a triplet, and codes for a particular amino acid.
There are four nitrogen bases, so four possible nucleotides. Among them, 3 are stop codons, rest 61 are codons denoting the 20 amino acids. Codons are discrete, meaning no same codon codes for more than 1 amino acid.
And these codons are universal. It means, like AUG denotes for amino acid methionine, and that is same in bacteria, as well as in all organisms. So they are universal.
Answer:
Phospholipid bilayer determinates which molecules can enter or exit the cell so its purpose is to be a checker in the middle. Cell membrane determinates the structure of the cell and it is the connection to the rest that happens in a cell.
Explanation:
Molecules can move in 2 ways: passive and active.
The only difference is the energy that is needed to do the movement.
In passive mechanisms, energy is not used, while in active transport, energy is needed. Diffusion or passive transport are moving the concentration from hight to low so the energy is not necessary. Active transport moves from low to a high concentration and it uses metabolic energy.
