17. Women with Turner syndrome have a genotype charactized as ____ 18. Red-green

Question

17. Women with Turner syndrome have a genotype charactized as ____
18. Red-green color blindness (CB) is caused by a sex-linked recessive allele. A CB man married a women who is CB, who's father was CB. What is the probability their son will be CB?
19. The assimilation of external DNA into bacteria is called ___
20. What is meant by the description "antiparallel" regarding the strands that make up DNA?
21. The enzyme catalyzes the elongation of a DNA strand in the 5'-->3' direction is ?
22. Which enzyme add nucleotides to the end of a growing DNA strand _____
23. The DNA strands are separated during replication by ______ and the segments of DNA are covalently connected by _____
24. If a cell were unable to produce histone proteins then the cell's DNA couldn't be packed into its ___
25. In a nucleosome, the DNA is wrapped around _____
26. A particular triplet of bases in the template strand of DNA is 5' AGT 3'. The corresponding codon for the mRNA transcribed is _____
27. RNA polymerase moves in which direction along the DNA ?
28. A RNA with enzymatic activity is called a _____
29. What are the coding segments of a stretch of eukaryotic DNA called ?
30. A particular triplet of bases in the coding sequence of DNA is AAA. The anticodon on the tRNA that binds the mRNA codon is ____
31. What is the most abundant type of RNA?
32. Groups of ribosomes reading a single mRNA simultaneously is called ____
33. Sickle-cell disease is probably the result of which kind of mutation?
34. The major steps in protein synthesis are ___
35. The nitrogenous base adenine is found in all members of which group ? A). Proteins, triglycerides, and testosterone B). Proteins, ATP, and DNA C). ATP, RNA, and DNA D. Alpha glucose, ATP, and DNA E). Proteins, carbohydrates, and ATP
36. If cytosine makes up 18%, the thymine percentage must be _____
37. Hydrangea plants of the same genotype are planted in a large flower garden. Some of the plants produce blue flowers and others pink flowers. This can be best explained by which of the following? A). Environmental factors such as soil pH B). The allele for the blue hydrangea being completely dominant C). The alleles being codominant D). The fact that a mutation has occurred 17) Women with Tumer syndrome have a genotype characterized as 18) Red-green color blindness (CB) is caused by a sex-linked recessive allele. ACB man marries a is CB whose father wasCB. What is the probability their son will be CB? 19) The assimilation ofextemal DNA into bacteria is called 20) What is meant by the description antiparallel" regarding the strands make up DN that 21) The enzyme catalyzes the elongation of a DNA strand in the 5 3' direction is 22) Which enzyme add nucleotides to the end of a growing DNA strand 23 The DNA strands are separated during replication by and the segments of DNA are covalently connected by 24) If a cell were unable to produce histone proteins then the cells DNA couldn't be packed into its 25) In a nucleosome, the DNA is wrapped around 26) A particular triplet of bases in the template strand of DNA is 5' AGT 3'.The corresponding codon for the mRNA transcribed is 27) RNA polymerase moves in which direction along the DNA? 28) An RNA with enzymatic activity is called a 29) What are the coding segments of a stretch of cukaryotic DNA called? 30) A particular triplet of bases in the coding sequence of DNA is AAA. The anticodon on the tRNA that binds the mRNA codon is 31) What is the most abundant type of RNA? 32) Groups of ribosomes reading a single mRNA simultaneously is called 32) Sickle-cell disease is probably the result of which kind of mutation? 33. The major steps in protein synthesis are and 34) The nitrogenous base all members of which group? A) proteins, triglycerides, and testosterone B) proteins, ATP, and DNA C) ATP, RNA, and DNA D) alpha glucose, ATP, and DNA E) proteins, carbohydrates, and ATP 35) If cytosine makes up 18%, the thymine percentage must be 36) Hydrangea plants of the same a plants produce blue flowers and others pink flowers. This can be best explained by which of the following? A) Environmental factors such as so pH B) The allele for blue being completely dominant C) The alleles being codominant D) The fact that a mutation has occurred

Explanation / Answer

17. ANS: A karyotype of 45, X

18. ANS: The probability that their first son is color blind is 50% (0.50) and color blind daughter Probability is (1/2 x 1/2) or 1/4 or 25% (0.25).

19. ANS: Transformation

The assimilation of external DNA into bacteria is called transformation.

20. ANS: The 5' to 3' direction of one strand runs counter to the 5' to 3' direction of the other strand.

21. ANS: DNA polymerase III

22. ANS: DNA polymerase III to add nucleotides to the 3' end of a growing DNA strand

23. ANS: Helicase, Ligase

24. ANS: The cell's DNA couldn't be packed into its nucleus.

25. ANS: Histones

26. ANS: 3' UCA 5

27. ANS: 3'--->5' along the template strand

28. ANS: Ribozyme

29. ANS: Exons

30. ANS: UUU.

31. ANS: The most abundant type of RNA in the cell is rRNA. The tRNA is second most abundant and
mRNA s only 5%.

32. ANS: Polyribosomes

33. ANS: Point

34. ANS: transcription and translation

35. ANS: C). ATP, RNA, and DNA

36. ANS: G (purine) = C (pyrimidine) and

A (purine) = T (pyrimidine)

So G + C would be 18% and hence

A +T would be 82% i.e. 46% each.

37. ANS: A). Environmental factors such as soil pH

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