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Kisachek [45]
3 years ago
10

A cell from a tissue culture has 38 chromoses after mitosis and cytokinesis one daughter cell has 37 what might occurred to caus

e the abnormal chromosome number​
Biology
1 answer:
ankoles [38]3 years ago
7 0

Answer:

occurred an aneuploidy (monosomy)

Explanation:

Aneuploidy can be defined as a chromosomal aberration in which the chromosome number is abnormal. In an aneuploidy, the number of total chromosomes in daughter cells is not an exact multiple of a haploid set, by either gaining or losing chromosomes during mitosis. Aneuploidies are common in cancer cells and in different types of chromosome disorders. Moreover, monosomy is a type of aneuploidy in which daughter cells have a single chromosome copy instead of the two copies found in diploid cells. For example, Turner syndrome is a monosomy caused by the loss of the X chromosome.

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How do positive and negative feedback loops differ?
Lesechka [4]

Answer:

Positive and negative feedback differs in that positive feedback loops increase the initial signal, while negative feedback loops decrease the original signal (option d).

Explanation:

Feedback is a process that, applied to biological systems, allows for the changes needed to maintain homeostasis.

  • Negative feedback loop occurs when a stimulus is presented, producing a change in the body, so the response is to stop the change that is occurring. It is the most frequent type of feedback and has the greatest impact on homeostasis.                                                                                                          An example of negative feedback is a decrease in body temperature through sweating.
  • Positive feedback loop occurs when the stimulus produces a change and promotes a response that reinforces that change.                                           The classic example of positive feedback is the secretion of oxytocin, promoted by uterine contractions, whose effect is to increase those contractions, allowing labor.

<em>In summary, </em><u><em>positive feedback loop acts by increasing an action or signal in the body, while the negative feedback loop reduces or stops the action or signal that occurs</em></u><em>.</em>

7 0
3 years ago
How that decomposer illustrates the conservation of matter?
klasskru [66]

Answer:

the decomposer is a translator for matter for example look at the nitrogem cycle the decomposer breaks down the dead biomass and converts ammonium into ammonia and then to nitrite and then to nitrate and ultimately into n2 gas that returns to the atmosphere during all that time no matter is lost and it all stays in the biosphere.

5 0
3 years ago
What is 80 multiplied by 80
Lynna [10]

Answer:

80 * 80

6400

Explanation:

It can be done by simple ways but making it 80^2

80 = 75 + 5

so u can use the formula of (a + b)^2

HOPE IT HELPS :)

PLEASE MARK IT THE BRAINLIEST!

6 0
3 years ago
What difference do you see between ribose and deoxyribose sugars?
abruzzese [7]

Answer:

ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins, although in some viruses RNA rather than DNA carries the genetic information.

Explanatioim smart now give brainliest plz

6 0
3 years ago
Read 2 more answers
Which of the following established the federal court system including circuits and appellate courts
worty [1.4K]

Answer:

C. The judiciary act of 1789

Explanation:

8 0
3 years ago
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