provide your response to the below questions. Be sure to If you need more paper,
ID: 195904 • Letter: P
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provide your response to the below questions. Be sure to If you need more paper, PART: SHORT ANSWER 8 points w the lined space on your Scantron (front and back), NUMBER r response so I know what answer is assoclated with which question.u - The Main cer ior wound rrpair and organstal growth piease raise your hand and ask. Full sentences are NOT necessary 1. 12 pts] Regarding DNA a. What are the twg main functions of DNA in a cel? b. Briefly explain why we refer to DNA replication as being "semi-conservative? 2. (2 pts) Regarding gene regulation: What is gene regulation? Provide how i a. b. t is an example of gene regulation.) an exampl of when gene regulation might be necessary in the human body. (Be specific as to 3 [3pts) Briefly desc be the oleof complementary base pairing in the below processes, DNA replication-intNkeplicato, Abnas u in rsend sudnc b. a, Transcription c. Translation 4, [1Explain the importance behind having hydrogen bonds connecting the two complementary DNA strands. Put your labeled response in the lined section of your scantron Full sentences not necessary Nucleotde DNA sample Percentage of Suppose you are studying a recently discovered an Martian organism. Its cells contain 8% nucleic acids, but to your surprise, you find nucleotides in a Martian DNA-lke molecule: A, T, G, C, and two unusual nucleotides, xenine (X) and martiacine (M). You determine the amounts of each nucleotide in a DNA sample, but unfortunately you spil some coffee on your lab notebook (we told you not to bring food into the labl) and can only read part of the data: 12% EC a. What are the missing percentages? EC b. In this alien DNA, what are the base-paring rules? (Ex.--withExplanation / Answer
please find the answer of part 1
Answer 1
what are the two main function of DNA in cell.
why we refer as DNA replication as a semiconvervative
DNA replication is semi-conservative because each helix that is created contains one strand from the helix from which it was copied. The replication of one helix results in two daughter helices each of which contains one of the original parental helical strands.
Answer 2
1 Gene regulation is the informal term used to describe any mechanism used by a cell to increase or decrease the production of specific gene products (protein or RNA). Cells can modify their gene expression patterns to trigger developmental pathways, respond to environmental stimuli, or adapt to new food sources.
2 Gene regulation example, the cells of the pancreas make the protein hormone insulin, while the cells of the pancreas make the hormone glucagon; the lym- phocytes of the immune system are the only cells in the body to make antibodies.
Answer 3
1 DNA Replication- Complementary Base Pairing. As the two strands of DNA unwind and separate in both directions, new complementary strands are produced by the hydrogen bonding of free DNA nucleotides with those on each parent strand.
2 DNA transcription occurs in the nucleus. It involves the unwinding of the double helix and the formation of mRNA complementary to the DNA strand by RNA polymerase. DNA transcription uses complementary base pairing of adenine, thymine, cytosine and guanine (on the DNA) to uracil, adenine, guanine and cytosine
3 Translation is the synthesis of polypeptides on ribosomes AND Translation depends on complementary base pairing between codons on mRNA and anticodons on tRNA.
Answer4
The hydrogen bonds that join DNA polymers happen between certain hydrogen atoms on one base (called hydrogen bond donors) and certain oxygen or nitrogen atoms on the base across from it (called hydrogen bond acceptors).
Adenine and Thymine each have one donor and one acceptor, whereas Cytosine has one donor and two acceptors, and Guanine has one acceptor and two donors.
The A nucleotides are always hydrogen bonded to T nucleotides, and C nucleotides are always hydrogen bonded to G nucleotides. This selective binding is called complementary base pairing, and creates consistency in the nucleotide sequences of the two DNA polymers that join together to make a chromosome.
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