1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lina2011 [118]
3 years ago
12

Hi, if you could please help with this biology worksheet, it would be greatly appreciated!

Biology
1 answer:
poizon [28]3 years ago
3 0

<u>Answer No 1: </u>

DNA:                  ACG   TCC   GCT  CGT   ATT

mRNA:               UGC   AGG  CGA  GCA  UAA

AA sequence:  Cys- Arg- Arg- Ala- Stop

<u>Answer No 2:</u>

<em>The correct option is D) Both B and C</em>

Explanation:

As we can see, The codons mentioned in the options Band C code for the same amino acid sequence hence, option D is the correct option.

<u>Answer No 3:</u>

The correct option is b) CAU

Explanation:

As we can see from the code table, the code CAU is for the amino acid histidine, hence it is not the code among the options shown which codes for Arg. All the other options mentioned in a,c and d code for Arg.

<u>Answer no 4:</u>

<em>The correct option is A) nucleus</em>

Explanation:  

All eukaryotic organisms have their DNA enclosed in a membrane bound structure known as the nucleus. For prokaryotes, however, the DNA is present in the cytoplasm as they lack a nucleus. In eukaryotes, the DNA never leaves the nucleus. It is always present inside it.

<u>Answer No 5:</u>

<em>The correct option is b) Translation</em>

Explanation:

Translation can be described as the process by which the code on the mRNA is translated and protein is made from the mRNA. The process of translation occurs in the ribosomes. The mRNA leaves the nucleus after being formed by transcription and is translated by the ribosome machinery as depicted in the image shown.

<u>Answer No 6:</u>

<em>The correct option is b) hydrogen bonds</em>

Explanation:

The structure of the DNA is double- helix. This means that the DNA contains two strands. The two stands of the DNA are joined by the hydrogen bonds which arise by the formation of bonds between the nucleotide bases. Adenine of one strand pairs with thymine of the other strand. Cytosine of one strand pairs with Guanine of the other strand.

<u>Answer No 7: </u>

<em>The correct option is A) phosphate</em>

Explanation:

The structure of DNA is double helix and made up of three basic parts which are the nitrogenous bases, deoxyribose sugar and phosphate. The phosphate- sugar make up the backbone of the DNA. The hydrogen bonds present between the nucleotide bases of the two strands keep the DNA intact. Hence, the circle in the image represent phosphate.

<u>Answer No 8:</u>

<em>The correct option is c) deoxyribose</em>

Explanation:

A ribose can be described as a sugas which contain 5 carbon atoms. In DNA, an oxygen atom from the ribose sugar is removed and hence it is termed as deoxyribose. The sugars and phosphates make up the back-bone of the DNA. Hence, we can easily depict that the pentagon structure in the diagram is of deoxyribose sugar.

<u>Answer No 9:</u>

<em>The correct option is d) DNA→ transcription→ mRNA→ translation→ amino acids→proteins</em>

Explanation:

The steps for the formation of a protein  are as follows:

  • By the process of transcription, DNA from which a protein is to be made is transcribed into mRNA. This happens by transcription- assembly. transcription occurs in the nucleus
  • By the process of translation, the mRNA is converted into amino acids by the ribosome machinery present in the cytoplasm.
  • Amino acids join by peptide bonds to form the desired protein.
You might be interested in
In the fossil record, there is no evidence of anything living on land before plants. Why are plants necessary before more compli
stiv31 [10]

Answer:

maybe option D is correct

6 0
2 years ago
Where did the First potato grow
Ymorist [56]

Answer:

Peru

Potato Facts: Origins of the Potato

The Inca Indians in Peru were the first to cultivate potatoes around 8,000 BC to 5,000 B.C. In 1536 Spanish Conquistadors conquered Peru, discovered the flavors of the potato, and carried them to Europe.

Explanation:

Hope this helps!!!!!

Forever friend and helper,

Cammie:)

3 0
3 years ago
Read 2 more answers
¿Cómo se produce la Hepatitis B?
guapka [62]

La hepatitis B es un virus, una infección de su hígado. Puede causar cicatrización del órgano, insuficiencia hepática y cáncer.

8 0
3 years ago
Which organisms use cellular replication called Mitosis?
wel
Isn't it none of the above? don't cells use mitosis?
6 0
3 years ago
Why is it important for geologists to use both relative and absolute ages to determine the age of rocks?
uysha [10]

Answer:

to help and determine the exact age of the rocks

Explanation:

The study of rocks strata is known as stratigraphy. It is useful and helps the scientist and the researcher to study the earth's crust and its past.

Scientist could age the rock using two methods. They are :

Relative ages

Absolute ages

Early scientist could determine the exact age of the rock of the earth's crust. They use to find the relative ages of the layers of the rocks and then determine how one rock layer is older or younger than the other. But with advancement and development of carbon dating, scientist could tell the exact age of the rocks found on the earth's crust.

The Scientists uses the relative as well as the absolute dating technique to date the rock layers. They organize the rock layers based on their age and scale from the oldest to the youngest on a geologic time scale. So an exact date of the rocks can be determine by using the two methods of relative age and the absolute age.

3 0
3 years ago
Other questions:
  • Which is a possible result of humans destroying habitats?
    5·1 answer
  • Researchers have found that mitochondria and chloroplasts in eukaryotic cells have their own DNA. This DNA is different from the
    14·1 answer
  • Which would have a greater effect a frameshift near the beginning or the end of a gene
    5·1 answer
  • _______________are structures in cells that carry out specific functions.
    12·1 answer
  • The Earth's changing distance from the Sun during the year causes the seasons true or false​
    12·1 answer
  • Is diffusion the only way materials can enter the cell?
    14·1 answer
  • Where are haploid cells<br> found?
    8·2 answers
  • Describe the process of photosynthesis, in your own words.
    9·1 answer
  • 36. how can you increase surface area but not volume of an object? biology
    10·1 answer
  • 6. Which type of ice is responsible for sea level rise? *
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!