What is meant by the description \"antiparallel\" regarding the strands that mak
ID: 300189 • Letter: W
Question
What is meant by the description "antiparallel" regarding the strands that make up DNA? a. The twisting nature of DNA creates nonparallel strands. b. The 5' to 3' direction of one strand runs counter to the 5' to 3' direction of the other strand. c. Base pairing create unequal spacing between the two DNA strands. d. One strand contains only purines and the other contains only pyrimidines. e. Each helical turn has 10 nucleotides. Which of the following is an example of the degeneracy of the genetic code? a. the last two bases specify the amino acid b. each codon specifies more than one amino acid c. the first two bases specify the amino acid d. a given amino acid could have more than one codon e. the genetic code is not degenerate The difference between ATP and the nucleoside triphosphates used during DNA synthesis is that___ a. the nucleoside triphosphates have the sugar deoxyribose; ATP has the sugar ribose b. the nucleoside triphosphates have a phosphate groups, ATP has three phosphate groups c. ATP contains three high-energy bonds; the nucleoside triphosphates have two d. ATP is found only in human cells; the nucleotides triphosphates are found in all animal and plant cells e. ATP can be incorporated in both DNA and RNa the nucleoside triphosphates are incorporate d only in DNA What is the role of DNA ligase in the elongation of the lagging strand during DNA replication? a. It synthesizes RNA nucleotides to make a primer. b. It binds to the DNA to stabilize the single stranded regions. c. It unwinds the parental double helix. d. It stabilizes the unwound parental DNA. e. It joins Okazaki fragments together. Transcription and translation of a gene composed of 30 nucleotides would form a protein containing no more than___ amino acids. a. 5 b. 10 c. 15 d. 30 e. 60 A black guinea pig crossed with an albino guinea pig produced twelve black offspring. When the albino was crossed with a second black animal, six blacks and six albinos were obtained. What is the best explanation for this genetic situation? a. Albino is recessive; black is codominant. b. Albino is dominant; black is incompletely dominant. c. Albino and black are codominant. d. Albino is recessive: black is dominant. e. Albino is dominant: black is recessive.Explanation / Answer
36. Antiparallel means the 5' to 3' direction of one strand runs counter to the 5' to 3' direction of the other strand.As One strand runs from 5' to 3' and the other strand runs from 3' to 5'. So the answer will be b.
37.Degeneracy of the genetic code means the given amino acid has more than 1 codon. Thus answer will be option d. The other options are invalid.
38. The answer will be the option a, the nucleoside triphosphates have the sugar deoxyribose; ATP has the sugar ribose .The deoxyribose form of ATP is called dATP. synthesis of RNA (ribonucleic acid), as opposed to the dATP used in DNA (deoxyribonucleic acid), uses ATP for it. other options are invalid.
39.DNA ligase joins Okazaki fragments during DNA Replication. Thus answer will be option e, other options are invalid and performed by others.
40.Transcription and translation of a gene composed of 30 nucleotides would form a protein containing no more than 10 amino acids. Thus answer will be b.
41.Albino is recessive; black is dominant will be the answer means option d because in the first generation, the black guinea pig must be homozygous dominant (BB), therefore its gametes all have dominant allele. While the albino should be homozygous recessive (bb). After first cross, The offspring were all heterozygous (Bb). heterozygous (Bb) will be The second black parent and will form gametes B and b. This allowed for the formation of albino offspring in the second cross.
.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.