QUESTION 7 The replication of a molecule of DNA with the base sequence C C A T G will create a new strand of DNA with the sequence: GTACC CCATG CCAUG GGTAC QUESTION 8 In a molecule of DNA, nucleotides in a single strand are joined by which type of bond? phosphate peptide hydrogen covalent QUESTION 9 When considering the candy DNA model described in Exercise 2, the "sugar-phosphate backbone" was represented by which type of candy? marshmallows tootsie rolls red licorice black licorice QUESTION 10 Watson and Crick called the DNA molecule a "double helix" because: there are two strands of nucleotides in a molecule of DNA. the two strands are bonded together through hydrogen bonds between base pairs. the molecule is "twisted" into a helical formation. They called it a double helix for all of the reasons above
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A pairs with T, and T pairs with A. G pairs with C, and C pairs with G. So, the complementary sequence for ATG is: **TAC** For Question 8, we need to identify the type of bond that joins nucleotides in a single strand of DNA. The correct bond Show more…
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Question 2 A nucleotide in DNA is composed of a deoxyribose sugar, a phosphate and a nitrogen base only a deoxyribose ribose and a nitrogen base only a deoxyribose sugar and a phosphate none of the above Question 3 What determines the nucleotide sequence of the newly synthesized strand during DNA replication? the particular DNA polymerase catalyzing the reaction the relative amounts of the four nucleoside triphosphates in the cell the nucleotide sequence of the template strand the primase used in the reaction the arrangement of histones in the sugar phosphate backbone
Stephanie P.
3. One strand of portion of a DNA molecule has the following sequence. 5' C T A T T G C T A C C G A 3' a) what is the complimentary sequence to this given sequence? b) what kind of bond joins one nucleotide to another in the DNA strand? c) which portion/s of the nucleotide (nitrogenous base, phosphate group, or pentose sugar) is involved in the formation of that bond that joins nucleotides together in the DNA strand? d) which enzyme/s catalyze the formation of that bond? e) what kind of bond joins one strand of DNA to another in the double helix? f) which portion/s of the nucleotide (nitrogenous base, phosphate group, or pentose sugar) is involved in the formation of that holds together the two strands in one DNA molecule? g) during the process of DNA replication, what protein breaks those bonds between the two DNA strands? h) which protein will help keep those separated DNA strands apart?
Madhur L.
1. Answer the following questions: a. Which three nucleic acid bases are common to both DNA and RNA? b. RNA differs from DNA in one nucleotide. DNA contains ________, RNA contains _____________. c. The two strands of the double-helix run ____________ to each other. d. In a DNA double helix the nucleotides of one strand are connected with the nucleotides of the other strand by what kind of bonds? e. There are ____ hydrogen bonds between guanine and cytosine and _____ hydrogen bonds between adenine and thymine. f. If the DNA strand 5' -GTCATGAC-3' is the template for replication, what would be the base sequence and polarity of the complementary strand? Indicate in which direction the new strand is synthesized (draw an arrow).
Mj A.
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