Answer:
The correct answer is - 1:1:1:1.
Explanation:
Mendel performed cross in between peas with round, green seeds (RRyy) with peas having wrinkled, yellow seeds (rrYY)
gametes : Ry and rY
↓
F1 : RrYy
Test cross is the cross between f1 offspring and recessive parent which is
gametes : RY, Ry, rY, ry and ry
↓
F2 : RrYy, Rryy, rrYy, and rryy.
So, the phenotypic ratio of the offspring would be - 1:1:1:1.
The insects obvi bc they need food
Answer:
B.
Explanation:
Because the tsunami killed off all three populations of birds and can no longer adapt.
<h2>
Answer:</h2><h3>1. four</h3>
Your heart has four separate chambers that pump blood, two on the right side and two on the left.
2. When the ventricle relaxes, the aortic valve closes <em>to prevent blood from flowing back into the ventricle</em>. When the aortic valve is not working properly, it can interfere with blood flow and cause the heart to strain to send blood to the rest of the body.
3. In medicine, a person's pulse is a pressure wave caused by the expansion of the arteries as a result of the circulation of blood pumped by the heart.
4. Capillaries are tiny vessels that branch out from arterioles to form networks around body cells.
Capillaries are very tiny blood vessels — so small that a single red blood cell can barely fit through them.
<em>hope</em><em> </em><em>this</em><em> </em><em>help</em><em>!</em><em> </em><em>^</em><em>^</em>
Answer:
The correct answer is c. That is 9 protein to form each facet
Explanation:
Given that the capsids is 25-30nm in diameter and it contains 180 identical capsomeres, if the virus capsid has 20 facets in 180 capsomeres, then for each protein facet, it will contain 9 protein facets.
Thai is 180 capsomeres divided by total number of facets (20).
