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4vir4ik [10]
3 years ago
9

Which of the following is not part of the cell theory? (4 points) Every living thing is composed of cells. Cells come from pre-e

xisting cells. Cells are the basic unit and structure of all living things. Every cell has a nucleus that contains genetic material.
Biology
2 answers:
rodikova [14]3 years ago
7 0

Answer:

The option D) 'Every cell has a nucleus that contains genetic material' is not a part of the cell theory.

Explanation:

The cell theory has three main postulates which are:

All living things are made up of a cell or different cells.

All cells arise from pre-existing cells

Cells are the basic unit of life.

The cell theory does not claim that every cell shall have a nucleus. The prokaryotes lack a nucleus yet still are living things. However, all cells will have genetic material in the form of DNA or RNA

irina1246 [14]3 years ago
3 0

AnswThe second option is not apart of the cell theory. I know this becuase I just got finished learning about Cell Theory on Edgenuity.

Explanation:

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Answer:

B

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A a living thing that has undergone a mutation.

Explanation:

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Which disorders can be observed in a human karyotype
s2008m [1.1K]

Answer:

Answered below.

Explanation:

A karyotype is defined as the size, shape, and number of chromosomes present in an organism.

An analysis is usually done on a karyotype to see if individuals have abnormal numbers or sizes of chromosomes. Such abnormalities may arise from;

Deletion: which implies that a chromosomal part is missing.

Duplication: where parts of a chromosome are repeated.

Translocation: which occurs when a chromosomal part breaks off and gets attached to another chromosome.

Nondisjunction: in which chromosomes do not separate from the parent cells.

Common chromosomal disorders arising from these abnormalities include;

Down's syndrome

Edwards syndrome

Turner's syndrome

Klinefelter syndrome

Prada-willi syndrome

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8 0
2 years ago
What might be a symptom of a person whose vein valves are not functioning properly and are causing fluid it flow away from the h
IrinaVladis [17]

Considering answers;

-fever

-constricted veins

-swollen veins

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Answer;

Swollen veins


Swollen veins might be a symptom of a person whose vein valves are not functioning properly and are causing fluid it flow away from the heart.


Explanation;

Valves are structures that are found in the circulatory system both in the heart and the veins.

They function to prevent the back flow of blood.

They do so by ensuring the continuous flow of blood in one direction.

If the valves are not functioning properly it may lead to various effects such as swollen veins due to the back flow of blood which may lead to the pooling of blood in the extremities.

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