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VikaD [51]
1 year ago
10

By the end of prophase, each of the following has occurred except ____.

Biology
1 answer:
Phantasy [73]1 year ago
3 0

Answer:

By the end of prophase, each of the following has occurred except <em>lining up of chromosomes in the cell.</em>

Explanation:

The lining up of the chromosomes in the cell occurs during the third stage of cell division. This stage is termed as the metaphase.

Prophase is the first stage of cell division. Hence, the lining of the chromosomes does not occur by the end of prophase.

During the prophase, the chromatin material condenses and become more compact so that the chromosomes become visible. The nucleolus and the nuclear envelope disappear by the end of prophase. Hence, all other options A, B and C occur by the end of prophase except option D.

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Match each scenario to its related biomolecules. Jack is eating a diet that will help him build muscle, so he eats a diet high i
Stells [14]

The options for this question are as follows:

A. Nucleic acids

B. Carbohydrates

C. Fats

D. Proteins

Now the correct answers of the match are as follows:

Jack is eating a diet that will help him build muscle, so he eats a diet high in this. <u>D. Proteins</u>

Explanation: Proteins help to build up the muscles. That's why people who want to do body-building, eat protein rich foods, like chicken, eggs, soy, etc.

Before a race, Ruth drinks a beverage full of this biomolecule to get energy. <u>B. Carbohydrate </u>

Explanation: This biomolecule provides instant energy to our body. For example, glucose is consumed before race, as dissolves quickly in our blood and provides instant energy. Glucose is an example of simplest carbohydrate.

These molecules in olive oil will help Ruth’s body store long-term energy. <u>C. Fats </u>

Explanation: Fats are the kind of biomolecule which is stored in our body in the adipose tissues. Also, when glucose is all used up by our body cells, the body starts to get energy from this stored fat.

Elizabeth has been advised to go for genetic screening to detect any abnormalities in her unborn child. <u>A. Nucleic acids </u>

Explanation: Every cell of our body has DNA, and it contains all the genetic information about the whole body. DNA is a kind of nucleic acid. If Elizabeth is going for test of the abnormality, it means she is going to test for the DNA of her child.

6 0
2 years ago
Walter has a degenerative condition known as multiple sclerosis (ms). in the context of specialized cell structure, his disease
Llana [10]
The answer would be the hardening of the myelin sheath. Multiple sclerosis is a chronic and inflammatory disease affecting the Central Nervous System and can cause a lot of symptoms like sensation changes, visual problems, severe fatigue and muscle weakness.
8 0
2 years ago
Read 2 more answers
Dangerous decreases in respiration, heart rate, and body temperature typically begin with a BAC of approximately __________ .
liberstina [14]

Answer: c. 0.15%

Explanation:

The blood alcohol concentration or BAC refers to the percentage of alcohol present in the bloodstream. The value of blood alcohol concentration of 0.15% is very high. It will affect the balance of voluntary muscles, walking and talking will also become difficult. The person will experience a severe increase in the rate of heart, the body temperature will rise, the person will experience irregular breathing and the bladder control will become weak.

6 0
2 years ago
The thin segment of the nephron loop's descending limb ________. The thin segment of the nephron loop's descending limb ________
vovangra [49]

Answer:

The correct answer is ''aids in the passive movement of water out of the tubule''

Explanation:

The nephron loop has a descending branch, which goes to the renal medulla, and an ascending branch, which goes back to the cortex. The nephrons of these kidneys can have loops of Henle of different dimensions. The thin segment of the loop has thin epithelial membranes, its cells are highly permeable to water, but not to solutes. The water that exits from the descending portion of the nephron loop into the medullary space is immediately reabsorbed by the peritubular capillaries, causing osmolality to increase in both the tubular fluid and the medullary interstitial fluid. The characteristics of the descending branch differ from one species to another, the normal thing is that in one way or another, the osmotic concentration of the urine that moves through it is balanced with that of the interstitial fluid.

5 0
2 years ago
In the first part of the dna isolation, you discarded the supernatant and kept the cells. however, after processing the sample w
pishuonlain [190]
<span>For the first step, you must isolate the cells from the media. The cells contain the DNA so you keep the cells and pellet. The next step would be a cell lysis which causes the cells to open and the DNA to come out. At this point you would keep the supernatant, as the pellet is the cell membrane and other parts of the cell. The chelex is to bind to transition metal ions. This would cause and DNases in the cell to become inactive because the metal ion is their cofactor. The pellet in this case would contain the chelex and the DNA would still be in the supernatant.</span>
8 0
2 years ago
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