4. Which structures are used by the cell for storing and maintaining biological information that will be passed to daughter cells when the cell divides? a. nucleus, chromatin b. nucleolus, ribosome c. vacuole, lysosome d. Golgi apparatus, endoplasmic reticulum

Answers

Answer 1
Answer: The answer is A, because the nucleus stores all the genetic information and the chromatin packages DNA to allow cell division and reproduction.
Answer 2
Answer: vacuole I think and sorry I have to say this but it is because it says it has to be to 20 to 5000 words long

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In our bodies excess carbohydrates (the ones we don't use immediately)are converted to what by the liver?
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Lobsters are crustaceans related to crayfish, crabs, and shrimp. Most lobsters are a reddish brown color, but on rare occasions, they can be orange, blue, or even multicolored. These color differences can be caused by__________.
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The discovery of mitochondrial DNA (mtDNA) had no effect on which area of scientific investigation?

In dogs spotted fur (S) is a dominant trait. The recessive allele (s) results in brown fur. One dog is heterozygous for spotted fur and mates with a dog homozygous recessive, and they have puppies.Which best describes the puppies?

Female Dog
S s
Male Dog s
s


A.
50% will be heterozygous, 0% will be homozygous dominant, and 50% will be homozygous recessive.

B.
50% will be heterozygous, 25% will be homozygous dominant, and 25% will be homozygous recessive.

C.
50% will be heterozygous, 50% will be homozygous dominant, and 0% will be homozygous recessive.

D.
25% will be heterozygous, 25% will be homozygous dominant, and 50% will be homozygous recessive.

Answers

Hi There! :)

B.
50% will be heterozygous, 25% will be homozygous dominant, and 25% will be homozygous recessive.

After Darwin proposed his ideas about natural selection as a mechanism for evolution, it took time before evolution was generally considered a theory. Why do we now refer to it as a theory?

Answers

Answer:

A scientific theory refers to the possible explanation of the natural event. It can be tested repeatedly and can be verified by anyone with the help of predefined sets of protocols and scientific experimentation.  

Similarly, Darwin proposed the idea of natural selection as the mechanism of evolution.  

Various experiments in labs, as well as observations made under natural conditions, proved that natural selection plays a major role in the evolution.

Examples may include industrial melanism of peppered moths, long neck of Giraffe, different shapes and sizes of beaks of Darwin finches et cetera.

This is why natural selection is considered a theory now.

Answer:

It is a fact and not a theory

Explanation:

A scientific theory is some natural phenomenon that has been tried and tested several times and backed by logical and testable observations and hypotheses in a way that  in future anyone can test it. It is not a guess or hunch but a concept explained with logic and backed by solid unvarying proofs.

In case of biological evolution, observations have been made and tested several times so that no more further testing or trying is required. Hence, by this logic evolution can be considered as a fact but it can not be considered as a theory.

Write a note on RNA polymerase

Answers

Answer:

Ther RNA polymerases (abbreviated as RNAPs or RNA pols), represent a group of conserved enzymes that synthesize RNA from DNA templates

Explanation:

These enzymes are used to synthesize different RNA species such as, amon others, messenger RNA (mRNA), transference RNA (tRNA), noncoding RNAs (ncRNAs), etc. During the gene transcription, the RNA pol is used to produce a mRNA molecule that subsequently is translated into protein

Answer: By definition, RNA polymerase or ribonucleic acid polymerase is a multi-subnunit enzyme that catalyze the process of transcription where an RNA polymer is synthesized from a DNA template.

Explanation:

RNA polymerase are highly conserved in evolution among eukaryotes, bacteria, archea and some viruses. Bacreria and archea has a single RNA. RNA polymerase are considered as molecular motors because of their stepwise movement on DNA. They are also central to biology information flow since they catalyzed templated polymerization reaction.

An animal cell that is surrounded by fresh water will burst because the osmotic pressure causesa. water to move into the cell.
c. solutes to move into the cell.
b. water to move out of the cell.
d. solutes to move out of the cell

Answers

a, because its a uneaven balance
The answer is a. water to move into the cell thats why cell will burst :)))
i hope this is helpful
have a nice day 

During glycolysis, the steps between glucose and formation of the triose phosphates collectively a. consume two ATP and two NADH molecules b. produce two ATP and two NAD+ molecules c. consume two ATP molecules d. produce two ADP and two NADH molecules e. consume two NAD+ molecules

Answers

Answer:

The correct answer is c. consume two ATP molecule

Explanation:

Glycolysis is the process in which glucose is partially breakdown into two pyruvate molecules. Glycolysis is divided into two-phase the first phase is the preparatory phase and the second phase is the payoff phase.

In preparatory phase energy is consumed and the formation of two molecules of glyceraldehyde 3 phosphate(triose phosphate) takes place with the consumption of two ATP, therefore, this phase is called energy investment phase.

These two ATP are consumed when fructose 6 phosphate converts into fructose 1,6 bis-phosphate. Therefore, the right answer is c.

Mollusks' group of organs is called a _____.visceral system
visceral mass
water vascular system

Answers

The answer is visceral mass.
All mollusks group of organs have visceral mass, a foot and a mantle.
Visceral mass contains the digestive system of the mollusks and other nervous system which is protected by a shell.

Answer:

visceral mass

Explanation: