Answer:
B. The ddNTPs lack a 3′ hydroxyl group.
Explanation:
Dideoxynucleotides is a family of inhibitors of the DNA polymerase, its official name is 2',3' dideoxynucleotides but they are commonly called ddNTPs. One of the main characteristics of this compound is the absence of the 3'-hydroxyl group in the deoxyribose, due to the absence of this group, it is impossible to form a phosphodiester bond between nucleotides and the DNA synthesis is stopped.
There is 50% chance of the child to be Rh-positive.
<h3>What is Rh factor?</h3>
Some red blood cells have a protein called a Rh factor. Person with this protein are called Rh-positive while those who don't have are called Rh-negative.
<h3>What will be the blood factor of the child?</h3>
When a Rh negative mother and Rh positive father have a child, the child has 50% chance of being Rh-positive. The child may receive the Rh factor from its father.
<h3>What is Rh incompatibility?</h3>
Your Rh factor blood type often doesn't pose a problem. Being Rh-negative during pregnancy, however, can cause issues if your unborn child is Rh-positive. When your blood and that of your child combine, your body will begin to produce antibodies that could harm your child's red blood cells. Your baby can experience other issues, such anemia, as a result of this.
Learn more about Rh factor here:
brainly.com/question/28189070
#SPJ4
It is true.
<h3>What is isotonic medium?</h3>
- A solution that has the same amount of salt as cells and blood. In hospitalized patients, isotonic solutions are routinely utilized as intravenous fluids.
- When a cell is immersed in an isotonic solution, there is no net movement of water into or out of the cell, and the volume of the cell remains constant.
- Isotonic solutions include 0.9% normal saline and lactated ringers. A hypertonic solution is one that has a greater solute concentration than the solution across the semi-permeable barrier.
- The isotonic solution allows the cells to move water and nutrients in and out of the cells. This is necessary for the blood cells to perform their function of supplying oxygen and other nutrients to other parts of the body.
To learn more about isotonic solutions from the given link
brainly.com/question/19464686
#SPJ4
