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ANEK [815]
3 years ago
14

Which scientists was the first to suggest that growth of cancerous cells was a result of abnormal chromosomes?

Biology
1 answer:
vagabundo [1.1K]3 years ago
5 0

Answer:

b. Theodor Boveri  

c. Walter Sutton

Explanation:

Sutton and Boveri's simple idea, known as the chromosomal theory of heredity, admits that chromosomes are the physical support of genes. From this idea, fields of research and knowledge that marked the whole of the twentieth century and which have repercussions until today.

From this idea it was possible to propose the constitution of tumor cells, deducing that malignant cell anomalies were consequences a modification of hereditary heritage, elaborating a pioneering hypothesis of the genetic origin of cancers.

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When would the carrying capacity of an area be most likely to change?
uranmaximum [27]

Answer:

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

An increase in population, resources, natural disasters, and catastrophic events. Weather, natural disaster, human activity. As a population reaches its carrying capacity, resources become more scarce.

5 0
2 years ago
Read 2 more answers
Using the picture below determine the type of mutation that has occurred.
Kazeer [188]

Answer:

Deletion

Explanation:

Deletion is the act of a gene being removed from a chromosome, making it mutated.

8 0
2 years ago
Which of these is a way to increase the availability of freshwater
Nastasia [14]

Answer:

Option A

Explanation:

Options -

A-avoid water pollution.

B-build thermal power plants.

C-add water features to gardens.

D-avoid drip irrigation systems

Solution -

The largest source of freshwater on planet earth is underground water. The water beneath the surface of earth is very limited. The total fresh water reserve on earth is 3% of the total water on earth. Pollution due to discharge of waste water into the rivers and oceans has caused the degradation of not only surface water but also ground water.  

Thus, option A is correct

Drip irrigation is a means to prevent wastage of water during irrigation. Thus, avoiding it will cause further loss of fresh water.  

Addition of water feature will increase usage of water, thus it is also incorrect

Building thermal plant will also cause water pollution and wastage. Hence, option  B is also incorrect

3 0
3 years ago
The plane that separated the body into superior and inferior portions is a sagittal plane.
dybincka [34]

Answer: False  

Explanation:

The saggital plane divides the body into two halves based on the fact that the body is segmented into left and right planes.

The plane may be away or at can lie at the center of the body and it splits the body into parts. It  may be far or close to the midline of the body. It may also split the body into two unequal parts.

The term saggital is coined by Gerard Cremona.

7 0
3 years ago
Cell membrane present ribosomes present lysosomes present nuclear membrane present
aleksley [76]

Answer:

animal

Explanation:

7 0
2 years ago
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