Question

7. The diagram below shows an alteration that occurred during the replication process of a portion of a gene. The numbers identify the locations of specific bases in the sequence ATCCGCATCTTAT Replication AT CGCATCTTAT 1 2 3 4 5 6 7 8 9 10 11 12 13 This alterations is most likely the result of A) a substitution at base 2 B) a deletion of base 2 C) an insertion of base 3 D) a deletion of base 4 8. The diagram below represents genetic material. X The expression of the section labeled X may be modified by A) temperature, only B) asexual reproduction C) the environment D) pH, only 10. The molecule DNA contains the four bases listed below. A - adenine C - cytosine G - guanine T - thymine Which base pairings normally occur during DNA replication? A) Guanine pairs with cytosine. Thymine pairs with thymine. B) Adenine pairs with thymine. Cytosine pairs with guanine. C) Thymine pairs with guanine. Cytosine pairs with adenine. D) Cytosine pairs with cytosine. Thymine pairs with thymine. 9. In a DNA molecule, if 38% of the molecular bases are C (cytosine), what percent of the bases are T (thymine)? A) 12 B) 24 C) 38 D) 62

          7. The diagram below shows an alteration that occurred during the replication process of a portion of a gene. The numbers identify the locations of specific bases in the sequence

ATCCGCATCTTAT Replication AT CGCATCTTAT
1 2 3 4 5 6 7 8 9 10 11 12 13

This alterations is most likely the result of
A) a substitution at base 2 B) a deletion of base 2
C) an insertion of base 3 D) a deletion of base 4

8. The diagram below represents genetic material.

X

The expression of the section labeled X may be modified by
A) temperature, only
B) asexual reproduction
C) the environment
D) pH, only

10. The molecule DNA contains the four bases listed below.
A - adenine
C - cytosine
G - guanine
T - thymine

Which base pairings normally occur during DNA replication?
A) Guanine pairs with cytosine. Thymine pairs with thymine.
B) Adenine pairs with thymine. Cytosine pairs with guanine.
C) Thymine pairs with guanine. Cytosine pairs with adenine.
D) Cytosine pairs with cytosine. Thymine pairs with thymine.

9. In a DNA molecule, if 38% of the molecular bases are C (cytosine), what percent of the bases are T (thymine)?
A) 12 B) 24 C) 38 D) 62

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7. The diagram below shows an alteration that occurred during the replication process of a portion of a gene. The numbers identify the locations of specific bases in the sequence

ATCCGCATCTTAT Replication AT CGCATCTTAT
1 2 3 4 5 6 7 8 9 10 11 12 13

This alterations is most likely the result of
A) a substitution at base 2 B) a deletion of base 2
C) an insertion of base 3 D) a deletion of base 4

8. The diagram below represents genetic material.

X

The expression of the section labeled X may be modified by
A) temperature, only
B) asexual reproduction
C) the environment
D) pH, only

10. The molecule DNA contains the four bases listed below.
A - adenine
C - cytosine
G - guanine
T - thymine

Which base pairings normally occur during DNA replication?
A) Guanine pairs with cytosine. Thymine pairs with thymine.
B) Adenine pairs with thymine. Cytosine pairs with guanine.
C) Thymine pairs with guanine. Cytosine pairs with adenine.
D) Cytosine pairs with cytosine. Thymine pairs with thymine.

9. In a DNA molecule, if 38% of the molecular bases are C (cytosine), what percent of the bases are T (thymine)?
A) 12 B) 24 C) 38 D) 62

Added by John O.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Madhur L

06/12/2023

Step 1

This is known as complementary base pairing. Now, we are given that 18% of the molecular bases are thymine (T) and 42% are cytosine (C). Since adenine (A) pairs with thymine (T), the percentage of adenine (A) in the DNA molecule must also be 18%. Similarly, since Show more…

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The diagram below shows alterations that occurred during the replication process of a portion of DNA. The numbers identify the location of specific bases in the sequence. This diagram represents genetic material. The molecule DNA contains the four bases listed below: adenine cytosine guanine thymine Which base pairings are involved during DNA replication? The expression of the section labeled X may be modified by temperature only. As for DNA molecule, 18% of the molecular mass is thymine (T) and 42% is cytosine (C). What percent of the bases are adenine (A)?

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Transcript

00:01 Hi all, so here we are asked a series of four questions.

00:07 So the first question which is marked as 7 here asked is, we are given a diagram of an alteration that below shows the alteration occurred during the replication process, replication process of a portion of gene.

00:29 So the number identify the location of a specific basis in the sequence and we are here asked that the alteration this occurred here is most likely the result of what? so here in the first sequence it is atccgcatcttat.

00:53 Now after replication, after replication the sequences atcgcatcttat.

01:10 So when we compare the sequences the only difference we can see is at here that is in the fourth position, fourth position or the fourth base position.

01:25 So here instead of c in the second it is g.

01:30 So we can say there occur the deletion of the c base pair.

01:35 So we can say here our answer is option d which says that a deletion of base 4.

01:48 Now next question here asked is the diagram below represents the genetic material that is we are here given the structure or diagram of the dna and our question is the expression of the section which is labeled as x.

02:05 That figure there is a portion which is labeled as x.

02:09 So maybe this section which is labeled as x can be modified by with whom? so we know that this dna can be modified only with this temperature that is at a high temperature this dna can get denatured.

02:25 So our answer is option a that is temperature only.

02:31 Answer is temperature only.

02:38 Next question here asked is in a dna molecule 38 % of the molecular bases is the cytosine...

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