According to cell theory, all cells carry out the functions needed to sustain life. That means all cells must contain A) DNA. B) a nucleus. C) organelles. D) a control center.

Answers

Answer 1

Answer:

According to cell theory, all cells carry out the function needed to sustain life.It means all cells must contain DNA as it is a molecule that holds biological instructions to develop, survive, and reproduce.

Thus, option A is correct.

What is cell theory?

Cell theory is given by Robert Hooke.
According to cell theory all cells arise from already existing cell
Cell is the basic structural and functional unit of life
All living organisms are made up of cell either single or multi cell

DNA is deoxyribonucleic acid made up of two polynucleotide chains that arranged in a double helical structure.

The main functions of DNA are replication, uncoding information,recombination and gene expression.

DNA plays a vital role and it is considered as primary unit of heredity in all types of organisms.

Therefore,According to cell theory, all cells carry out the function needed to sustain life.It means all cells must contain DNA as it is a molecule that holds biological instructions to develop, survive, and reproduce.

Thus, option A is correct.

Learn more about cell theory here:

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Changing genes by taking in different genetic material

Answers

- Can change in the structure of chromosome affect in health and development . These changes can affect many genes along the chromosomes and disrupt the proteins made from those genes.

_-_ hOpe that this really helpss youu well, and have a GREAT BRAINLY DAY .

Biologists once assumed that the phenotype of a dominant allele would always be the most common phenotype in a population. Which finding led biologists to a different conclusion?

Answers

The answer is C. The discovery of those populations in which phenotype of recessive allele help a population survive.

Which of the following is not an example of self-management?knowing first aid

wearing your seatbelt

riding your bicycle without a helmet

practicing food-safety skills

Answers

riding your bicycle without a helmet.

In an experiment, a scientist makes a radioactively labeled probe using human DNA. She then discovers that the probe hybridizes to a small segment of DNA isolated from a plant. What can she conclude from her results? A.The plant might have a gene that is similar to a human gene. B.The wrong method was used to detect radioactively labeled DNA. C.A plant cell has a cell wall, whereas a human cell does not. D.Plant DNA was accidentally used as a template to make the probe.

Answers

Answer: The correct answer is- A.The plant might have a gene that is similar to a human gene.

Probe can be described as the segment of DNA or RNA (generally 100-1000bp in length) that is designed and radioactively labelled to detect the presence of nucleotide sequences, which are complementary to it.

In this question, the probe is synthesised using sample of human DNA but it also hybridizes with the plant DNA.

This indicates that plant genome has certain DNA sequence or gene that is similar to the gene in the human DNA.

Thus, option A) is the right answer.

I believe the possible correct choice is A.

What is the full form of DNA

Answers

Answer:

The full form of DNA is deoxyribonucleic acid.

Explanation:

DNA is a molecule that contains the genetic instructions for the development, functioning, and reproduction of all known living organisms. It is often referred to as the "blueprint of life." DNA is made up of two strands that are twisted together in a double helix structure. Each strand consists of a series of nucleotides, which are composed of a sugar molecule (deoxyribose), a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine).

The sequence of these nitrogenous bases along the DNA strand determines the genetic code, which carries the instructions for the synthesis of proteins and the overall functioning of the organism. DNA is found in the nucleus of eukaryotic cells and in the cytoplasm of prokaryotic cells.

To summarize, DNA stands for deoxyribonucleic acid, and it is a molecule that carries the genetic information of living organisms.

Can someone help me An organism's energy, nutrient and survival requirements are aspects of its: habitat population ecosystem niche

Answers

Can someone help me An organism's energy, nutrient and survival requirements are aspects of its niche. Niche is a term used to refer to an organism's ability to adapt and respond to its environmental conditions. This includes its behavior to the availability of food & water, presence of predators, reproduction, and survival.

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Plant tissue culture is a method of asexual reproduction used to produce clones of a plant with desirable traits. Plant tissue culture relies on the fact that plant cells have the ability to regenerate a whole plant. Single cells are dosed with certain chemicals that trigger dividing cells to produce roots, shoots, and leaves. Which tenet of cell theory BEST serves as a basis for this type of biotechnology?

How does biogeography contribute to an understanding of evolution?

Would you expect a fast-moving mountain stream or the Mississippi River to have more dissolved oxygen?