To Help People Study For Biology.

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| By Needbiologyhelp

Needbiologyhelp

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Quizzes Created: 1 | Total Attempts: 359

Questions: 8 | Attempts: 359 | Updated: Mar 16, 2022

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To Help People Study For Biology. - Quiz

Biology has never been an easy topic to master. The subject matter covers such a broad range of different aspects regarding life that it’s almost impossible to learn it all off – that’s where we come in! We’ve comprised a list of questions to help you study for biology and remember some of the vital pieces of information you’ll come across. Think you can get all the questions correct?

Questions and Answers

1.

Which is a characteristic of lymph nodes?
- A.
  
  Carry blood under great pressure
- B.
  
  Move fluids by means of a muscular pump.
- C.
  
  They produce new red blood cells
- D.
  
  Contain phagocytotic cells
Correct Answer
D. Contain pHagocytotic cells

Explanation
Lymph nodes are small, bean-shaped organs that are part of the lymphatic system. They play a crucial role in filtering and trapping harmful substances, such as bacteria and viruses, from the lymph fluid. This process is carried out by phagocytic cells, which are specialized immune cells that engulf and destroy foreign particles. Therefore, the characteristic of lymph nodes mentioned in the answer, "contain phagocytotic cells," is correct.

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2.

The accumulation of specific antibodies in the plasma, due to the introduction of an antigene, is characteristic of
- A.
  
  Immune response
- B.
  
  Angina pectoris
- C.
  
  Cerebral paulsy
- D.
  
  Ciribary thrombios
Correct Answer
A. Immune response

Explanation
The accumulation of specific antibodies in the plasma is a characteristic of the immune response. When an antigen is introduced into the body, it triggers the immune system to produce antibodies that specifically target and neutralize the antigen. These antibodies then accumulate in the plasma, ready to defend against future exposures to the same antigen. This process is a fundamental aspect of the immune response and plays a crucial role in protecting the body against infections and diseases.

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3.

Where is DNA found
- A.
  
  Nucleus
- B.
  
  Arms
- C.
  
  Vacuoles
- D.
  
  Chloroplast
- E.
  
  Mitochondria
Correct Answer
A. Nucleus

Explanation
DNA is found in the nucleus of cells. The nucleus is the control center of the cell and contains the genetic material, including DNA. DNA carries the instructions for the development, functioning, and reproduction of all living organisms. It is responsible for passing on traits from parents to offspring and plays a crucial role in protein synthesis and cell division. While DNA is also found in mitochondria and chloroplasts, the majority of DNA is located in the nucleus. Therefore, the correct answer is nucleus.

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4.

What type of bond joins the nitrogen carrying bases in a DNA molecule?
- A.
  
  Hydrogen bonds
- B.
  
  Amino acids
- C.
  
  Peptide bonds
- D.
  
  Codons
Correct Answer
A. Hydrogen bonds

Explanation
Hydrogen bonds join the nitrogen carrying bases in a DNA molecule. These bonds form between the nitrogenous bases adenine (A) and thymine (T), as well as between guanine (G) and cytosine (C). Hydrogen bonds are relatively weak compared to covalent bonds, but they play a crucial role in stabilizing the DNA structure by holding the two strands of the double helix together. This allows for the replication and transcription of DNA, as well as the accurate transmission of genetic information during cell division.

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5.

The process in which RNA is made is called what?
- A.
  
  Translation
- B.
  
  Transcription
- C.
  
  Messenger
Correct Answer
B. Transcription

Explanation
Transcription is the process in which RNA is made. It involves the synthesis of RNA molecules using a DNA template. During transcription, an enzyme called RNA polymerase binds to the DNA and separates the two strands. It then uses one of the DNA strands as a template to synthesize a complementary RNA molecule. This newly synthesized RNA molecule is then released, and it can go on to perform various functions within the cell. Therefore, transcription is the correct answer to the question.

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6.

Another name for protein synthesis is
- A.
  
  Transcription
- B.
  
  Translation
- C.
  
  Messanger
- D.
  
  Nucleotides
Correct Answer
B. Translation

Explanation
Protein synthesis is the process by which cells generate new proteins. It involves two main steps: transcription and translation. Transcription is the process of copying the DNA sequence into a messenger RNA (mRNA) molecule. On the other hand, translation is the process of converting the mRNA sequence into a specific amino acid sequence, which forms the protein. Therefore, the correct answer is "translation" because it accurately represents the step in protein synthesis where the mRNA sequence is translated into a protein.

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7.

DNA "scissors" used in the production of rDNA are called
- A.
  
  Nucleotides
- B.
  
  Restriction dna enzymes
- C.
  
  Messanger RNA
- D.
  
  Transcription
Correct Answer
B. Restriction dna enzymes

Explanation
The correct answer is restriction DNA enzymes. Restriction DNA enzymes, also known as restriction endonucleases, are enzymes that can recognize specific DNA sequences and cut the DNA at those sites. These enzymes are commonly used in the production of recombinant DNA (rDNA) because they can be used to cut DNA molecules at specific locations, allowing for the insertion of foreign DNA into the cut sites. This process is essential in genetic engineering and the creation of rDNA molecules. Nucleotides, messenger RNA, and transcription are not directly related to the "scissors" used in rDNA production.

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8.

DNA "tape" used in the production of rDNA is called
- A.
  
  DNA LYGOSE
- B.
  
  DNA TRANSCRIPTION
- C.
  
  DNA TRANSLATION
- D.
  
  MESSANGER RNA
Correct Answer
A. DNA LYGOSE

Explanation
The correct answer is DNA LYGOSE. However, there is no such term as "DNA LYGOSE" in biology or genetics. It is likely that this answer choice is incorrect or misspelled.

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Current Version
Mar 16, 2022

Quiz Edited by
ProProfs Editorial Team
Jan 17, 2008

Quiz Created by
Needbiologyhelp

To Help People Study For Biology.

Which is a characteristic of lymph nodes?

The accumulation of specific antibodies in the plasma, due to the introduction of an antigene, is characteristic of

Where is DNA found

What type of bond joins the nitrogen carrying bases in a DNA molecule?

The process in which RNA is made is called what?

Another name for protein synthesis is

DNA "scissors" used in the production of rDNA are called

DNA "tape" used in the production of rDNA is called