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lana66690 [7]
4 years ago
13

What chemical makes up the rungs? More than one answer

Biology
1 answer:
Goryan [66]4 years ago
3 0
The answer is B. Nitrogen base

The sides of the DNA ladder are made of alternating sugar and phosphate molecules, the sugar being deoxyribose. The rungs of the ladder are pairs of four types of nitrogen bases (adenine, thymine, cytosine, and guanine)

Hope this helps :)
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which process results in two daughter cells each having the same number of chromosomes as the parent cell
Rudik [331]

Answer: The correct answer is Mitosis.

Mitosis is a type of cell division in which parent cell is converted into two daughter cells having same number of chromosomes as that of the parent cell.

It is divided into the following stages-

1) Prophase-  It is the first phase of mitosis in which condensation of chromosomes ( clearly visible chromosomes with sister chromatids) takes place and the nuclear membrane is disappeared.

2) Metaphase- It is the second phase in which chromosomes are aligned at the equatorial plate of the cell and they are anchored by microtubules from opposite poles.

3) Anaphase- It is the third phase in which each sister chromatid of the chromosome is pulled apart ( with the help of microtubules) towards the opposite pole.

4) Telophase- Chromosome decondensation takes place and nuclear membrane is formed so that two nuclei are visible now.

5) Cytokinesis- It is the last phase of mitosis in which division of cytoplasm takes place so that two daughter cells are produced having same number of chromosomes as their parent cell.


3 0
3 years ago
Read 2 more answers
A fracture of the humerus just above the elbow would be described as a: Select one: a. distal forearm fracture. b. proximal hume
telo118 [61]

Answer:

<em>The correct option is d) distal humerus fracture</em>

Explanation:

The humerus is one of the three bones which join to make up the elbow joint. A break in the lower end part of the upper elbow results in distal humerus fracture. Such types of events are caused due to high energy collisions such as during an accident. The distal humerus fracture can be treated through a surgery. During the surgery, the normal motion of the humerus is tried to be restored.

4 0
3 years ago
Carlos is studying the characteristics of a fundamental force. The force is sometimes repulsive and sometimes attractive. Which
aleksklad [387]
The answer to this question would be: <span>b.electromagnetic or weak nuclear
</span>
The electromagnetic force can be repulsive or attractive because it was influenced by the magnetic charge. The same charge (positive with positive) will be repulsive but different charge will be attractive(negative and negative). The gravitational force will always be attractive, not repulsive. 
Weak nuclear can do both like electromagnetic force.

6 0
3 years ago
In the phospholipid bilayer, which region is hydrophilic?
Fantom [35]

Answer:

(choice B) ONLY B

Explanation:

please give me brainliest.

7 0
3 years ago
Read 2 more answers
The nurse is assessing the nutritional status of a 3-month-old baby. the mother informs the nurse that she feeds the baby with c
Arlecino [84]
I’m not sure that your choices are because it says select all that apply but I would tell the mother to stop giving the baby cows milk. The baby needs more iron which is in breast milk or formula if not she can become anemic and cows milk is not easy to digest for babies.
7 0
4 years ago
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