BIOLOGY HIGH SCHOOL

In your own words, explain how the planets Venus and Mercury can be located in the night sky.

Answers

Answer 1
Answer:

Answer:

draw line with your mind's eye between Venus in the Sunset Point Mercury will be along that line below Venus near the Sunset Point then watching the coming evenings as mercury ascendant evening Sky while Venus descends toward its June 3rd passage between the Earth and Sun

Answer 2
Answer:

Answer:

After you've spotted Venus in evening twilight, look just to its right for Mercury, assuming you live north of the equator. If you live south of the equator, look below and to the left of Venus.

Explanation:

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The cell cycle only occurs in which type of cells?

Answers

eukaryotic cells??
Mitosis

the stage of the cell cycle during which the cell's nucleus divides into two new nuclei and one copy of the DNA is distributed into each daughter cell.

 

When the adult frog leaves the pond what change has to take place??

Answers

What happens to a tadpole after about 70 days of life? 
It is dependent on the species of frog, temperature, etc. but most likely: 
D. is a full adult frog 

Are there more adults(18 or over) than kids in this world?

Answers

With world conditions today its hard for a family to survive. So not to many people will want kids in order to survive. So I say Yes There is.
yes there are more adults than children (working age) next level is children and the lowest level is the old age (dependants).

do the results shown in figure 19.5 prove conclusively that histone modifications are causing reduced hnf4a gene transcription? why or why not?

Answers

because of the null hypthesis 

Which of the following is a true statement about osmosis? A.
Osmosis is diffusion of sugar molecules across a membrane.

B.
Osmosis is diffusion of water molecules across a membrane.

C.
Osmosis is diffusion in plants cells.

D.
Osmosis is diffusion in animal cells.

Answers

B, osmosis is the movement of water across a semi-permeable membrane according to the gradient of concentration. The water moves to were the concentration of  solute is higher, that way the solute concentration is equalized.

Which does not occur during translation? tRNA pairs with complementary mRNA. A peptide bond is created between amino acids. DNA is transcribed into a complementary strand of mRNA. A chain of amino acids, linked by peptide bonds, is formed..

Answers

The transcription of DNA into a complementary strand of mRNA does not take place in translation.  

In genetics and molecular biology, translation refers to the procedure in which ribosomes in the Endoplasmic reticulum or cytoplasm produce proteins after the procedure of transcription of DNA to RNA takes place in the nucleus of the cell.  

In translation, the mRNA is deciphered in a ribosome to generate a particular chain of amino acid or polypeptide.  

DNA transcription into a complementary strand of mRNA does not occur during translation process.

Further Explanation

Translation  

  • Translation refers to the process by which proteins are synthesized in the cell. The process takes place in organelles known as ribosomes found either freely suspended in the cytoplasm or attached to the surface of the rough endoplasmic reticulum.
  • During the process of translate the genetic code carried by the messenger RNA is decoded by the help of a transfer RNA and is used to make sequence of amino acids and then proteins.
  • mRNA contains codons such that each codon codes for a specific amino acids.
  • Each codon is decoded to form an amino acid that is attached to another and so forth forming a polypeptide and consequently a protein.
  • Codon in this case refers to a three nucleotide bases that are read together during translation and codes for a particular amino acid.
  • tRNA is responsible for bringing amino acids to the ribosomes since it contains the anticodons that are complementary to the codons on the mRNA

Transcription

  • This is the process that occurs before translation in the nucleus of a cell. Information carried by the DNA is copied to a complementary messenger RNA.
  • The process of transcription is catalyzed by enzyme RNA polymerase which acts on DNA to produce a molecule of mRNA.

Keywords: Translation, messenger RNA, transcription, ribosomes.

Learn more about:  

Level: High school  

Subject: Biology  

Topic: Gene expression

Sub-topic: Translation  
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