56 Answered Questions for the topic DNA

Dna

05/04/19

Is there any other function of DNA?

We all know that DNA acts as a genetic molecule. Does DNA have any other function in the cell other than being a genetic material and carrier of information?
Dna

05/01/19

How does DNA still work after recombination?

If you take two computer programs and randomly swapped pieces from each of them. The result is not going to work. It will just be garbage. If you take two novels and randomly swapped chapters the... more
Dna

04/19/19

What is the number of DNA strands per cell?

I wonder if each cell possess only one strand of DNA which according to my book is more than "7 feet" long(if uncoiled), then why does human has 46 chromosomes which are actually coiled chromatin... more
Dna

04/11/19

What is the advantage of circular DNA in bacteria? ?

From what I understand, bacteria have circular DNA. What advantages does it have over linear strands like for eukaryotes? Do there exist bacteria with more than one ring of DNA?
Dna

04/11/19

Why are there exactly four nucleobases in DNA?

Does someone know why DNA is composed of four nucleobases? In particular, is there an explanation for the number? Why four and not two, or eight?
Dna

04/10/19

A codon is a group of three bases that specifies a particular amino acid. Which of the following enzymes can ‘read’ codons on an mRNA?

a.DNA polymeraseb.Ribosomec.Primased.RNA polymerase 
Dna

03/16/19

why is DNA antiparallel? Can it be parallel?

My biology textbook mentions that DNA is antiparallel and it got me wondering... Can DNA be parallel? What would happen if it was parallel? could DNA still replicate right?
Dna

03/15/19

Knockout and knockdown of gene?

Out of curiosity, I got this question whether knocking out (deletion) of a gene on one side and knocking down (RNAi) of the same gene on the other side will affect the cell in a similar manner or... more
Dna

03/14/19

Why is DNA antiparallel? Can it be parallel?

My biology textbook mentions that DNA is antiparallel and it got me wondering... Can DNA be parallel? What would happen if it was parallel? could DNA still replicate right?
Dna

01/11/19

Replicate the following DNA strands using what you know about complementary base pairs.

AATACGTCCAGATTTT?TTAACCGAGTTCAGA?CCCGCGGAATATACA?AGGGCTACTTCAGAC?
Dna

10/10/17

template and coding DNA

If the template strand of DNA is 3’-xxx-5’, what are the first 4 amino acids of the protein?If the coding strand of DNA is 3’-xxx-5’, what are the first 4 amino acids of the... more
Dna

10/06/17

Breeding Orchids

A horticulturalist breeds orchids, trying to obtain a plant with a unique combination of desirable traits. After many years, she finally succeeds. To produce more plants like this one, should she... more
Dna

10/02/17

where do you think the bacterium that produces HindIII is found?

The optimal working temperature for the restriction endonuclease HindIII is 37°C
Dna

03/15/17

Uracil is always paired with adenine in double standed dna

I dont know the answer to this and i need it for biology. I dont know what pairs up with adenine.
Dna

12/11/16

Watson and Crick

How did Watson and Crick use the data and conclusions of other scientists to put together the proper model of the double helix? What key thing did they do with the molecular shapes that solidified... more
Dna

12/11/16

Translation of proteins

The interaction of what molecules causes the protein to fold into its proper shape? Therefore, the interaction of what molecules is responsible for giving the newly constructed protein its... more
Dna

12/11/16

Transcription - How to do it ?

Transcribe the following DNA strand into two single stranded pieces of RNA:   A A T G C C G T A T A G C T C A T G C T A T T A C G G C A T A T C G A G T A C G A T   please explain how to do this 
Dna

12/10/16

Pieces of DNA ( please explain how you got the answers )

This is a piece of DNA showing the sites in which restriction enzymes bind to and cut DNA into fragments, and the size of the DNA between the restriction enzyme sites.:       2kb              ... more
Dna

11/21/16

The DNA in a human chromosome is about 10 cm in length.

The DNA in a human chromosome is about 10 cm in length. A typical human cell has a diameter of 15um, and its nucleus occupies 30% of the cell volume. What is the minimum number of times the DNA in... more
Dna

11/15/16

how much lighter would you be if all your dna disappeared?

how much lighter would you be if all your DNA disappeared  
Dna

10/02/16

BIOLOGY! WHY are nucleotides a good molecule to make DNA out of, while amino acids are a good molecule to make proteins out of?

Hello everyone! I was wondering if you could help me answer this question. I have an upcoming quiz next week and this question will be on it - I am not asking for you to answer this completely, I... more
Dna

05/01/16

DNA Analysis

What is a restriction endonuclease, describe how these can be used to investigate two types of polymorphism found in DNA?  
Dna

04/30/16

DNA Analysis, Extraction & Visualisation of DNA using Agarose Gel Electrophoresis.

1- A solution of Lambda DNA has a concentration of 0.1mg/ ml. How much DNA (in mg) do we have in a 4 ml sample? 2. Given that lambda has a genome size of 50 Kb, how many complete lambda genomes are... more
Dna

04/29/16

Vector Genetics DNA

You digest a 2000kb region of DNA with EcoRI and get three fragments. The middle fragment is 300bp. You take the middle fragment and clone it into a vector that is 700bp. a) How large will the... more

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