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DNA (Deoxyribonucleic Acid) is a molecule that contains the genetic instructions necessary for the growth, development, functioning, and reproduction of all known living organisms. DNA is a long, double-stranded molecule composed of four nucleotide building blocks: adenine (A), cytosine (C), guanine (G), and thymine (T). The structure of DNA is often referred to as a double helix, where two strands of DNA are wound together in a spiral shape, with the nucleotide bases forming pairs and connecting the two strands. Adenine pairs with thymine (A-T), and cytosine pairs with guanine (C-G), held together by hydrogen bonds. This base-pairing arrangement allows DNA to carry and store genetic information in the sequence of its nucleotide bases, which form a genetic code. DNA carries the genetic information that determines an organism's inherited traits from one generation to the next through a process called DNA replication and cell division.
DNA carries the genetic information that determines an organism's inherited traits from one generation to the next through a process called DNA replication and cell division.: True
Adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G) in RNA.: Not True
RNA plays a crucial role in the synthesis of proteins in living organisms.: True
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
79% (02:04) correct
21%
(01:32)
wrong
based on 247
sessions
History
Date
Time
Result
Not Attempted Yet
For each of the following statements, select True if the statement is supported by the information provided, otherwise select Not True.
| True | Not True | |
| DNA carries the genetic information that determines an organism's inherited traits from one generation to the next through a process called DNA replication and cell division. | ||
| Adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G) in RNA. | ||
| RNA plays a crucial role in the synthesis of proteins in living organisms. |
ShowHide Answer
Official Answer
DNA carries the genetic information that determines an organism's inherited traits from one generation to the next through a process called DNA replication and cell division.: True
Adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G) in RNA.: Not True
RNA plays a crucial role in the synthesis of proteins in living organisms.: True
The four nucleotide bases in RNA are adenine (A), cytosine (C), guanine (G), and uracil (U), which replaces thymine (T) found in DNA.: Correct
DNA and RNA are typically double-stranded molecules.: Incorrect
DNA is less stable than RNA.: Incorrect
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
85% (00:38) correct
15%
(00:37)
wrong
based on 222
sessions
History
Date
Time
Result
Not Attempted Yet
For each of the following statements, select Correct if the statement is correct according to the information provided, otherwise select Incorrect.
| Correct | Incorrect | |
| The four nucleotide bases in RNA are adenine (A), cytosine (C), guanine (G), and uracil (U), which replaces thymine (T) found in DNA. | ||
| DNA and RNA are typically double-stranded molecules. | ||
| DNA is less stable than RNA. |
ShowHide Answer
Official Answer
The four nucleotide bases in RNA are adenine (A), cytosine (C), guanine (G), and uracil (U), which replaces thymine (T) found in DNA.: Correct
DNA and RNA are typically double-stranded molecules.: Incorrect
DNA is less stable than RNA.: Incorrect
RNA performs functions such as catalyzing chemical reactions or regulating gene expression.
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
87% (01:32) correct
13%
(01:06)
wrong
based on 228
sessions
History
Date
Time
Result
Not Attempted Yet
All of the following statements are supported by the information provided above EXCEPT.
| RNA translates genetic information from DNA into proteins, while DNA stores genetic information and carries instructions for protein synthesis. | |
| DNA is found primarily in the nucleus of cells, with a small amount in mitochondria. | |
| RNA is a nucleic acid made up of a chain of nucleotide building blocks, similar to DNA, but it has some important differences in structure and function compared to DNA. | |
| RNA performs functions such as catalyzing chemical reactions or regulating gene expression. | |
| DNA is found in the nucleus of cells in most living organisms. |
ShowHide Answer
Official Answer
RNA performs functions such as catalyzing chemical reactions or regulating gene expression.
30 May 2025, 15:15
Kudos
Bookmarks
Official Solution:
DNA carries the genetic information that determines an organism's inherited traits from one generation to the next through a process called DNA replication and cell division.
• Tab 1 states that DNA passes genetic information through replication and cell division. Thus, this statement is true.
Adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G) in RNA.
• Tab 2 states that RNA contains uracil, which replaces thymine found in DNA. So, adenine (A) pairs with uracil (U), not thymine (T). Thus, this statement is not true.
RNA plays a crucial role in the synthesis of proteins in living organisms.
• Tab 2 states that RNA plays a crucial role in the synthesis of proteins. Thus, this statement is true..
Correct answer:
DNA carries the genetic information that determines an organism's inherited traits from one generation to the next through a process called DNA replication and cell division. "True "
Adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G) in RNA. "Not True"
RNA plays a crucial role in the synthesis of proteins in living organisms. "True "
Bunuel
DNA carries the genetic information that determines an organism's inherited traits from one generation to the next through a process called DNA replication and cell division.
• Tab 1 states that DNA passes genetic information through replication and cell division. Thus, this statement is true.
Adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G) in RNA.
• Tab 2 states that RNA contains uracil, which replaces thymine found in DNA. So, adenine (A) pairs with uracil (U), not thymine (T). Thus, this statement is not true.
RNA plays a crucial role in the synthesis of proteins in living organisms.
• Tab 2 states that RNA plays a crucial role in the synthesis of proteins. Thus, this statement is true..
Correct answer:
DNA carries the genetic information that determines an organism's inherited traits from one generation to the next through a process called DNA replication and cell division. "True "
Adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G) in RNA. "Not True"
RNA plays a crucial role in the synthesis of proteins in living organisms. "True "
31 May 2025, 17:15
Kudos
Bookmarks
Official Solution:
The four nucleotide bases in RNA are adenine (A), cytosine (C), guanine (G), and uracil (U), which replaces thymine (T) found in DNA.
• Tab 2 states that RNA contains uracil, which replaces thymine found in DNA. Thus, this statement is correct.
DNA and RNA are typically double-stranded molecules.
• Tab 2 states that RNA is typically single-stranded, while Tab 1 states that DNA is double-stranded. Thus, this statement is incorrect.
DNA is less stable than RNA.
• Tab 3 states that DNA is more stable and RNA is less stable. Thus, this statement is incorrect.
Correct answer:
The four nucleotide bases in RNA are adenine (A), cytosine (C), guanine (G), and uracil (U), which replaces thymine (T) found in DNA. "Correct"
DNA and RNA are typically double-stranded molecules. "Incorrect"
DNA is less stable than RNA. "Incorrect"
Bunuel
The four nucleotide bases in RNA are adenine (A), cytosine (C), guanine (G), and uracil (U), which replaces thymine (T) found in DNA.
• Tab 2 states that RNA contains uracil, which replaces thymine found in DNA. Thus, this statement is correct.
DNA and RNA are typically double-stranded molecules.
• Tab 2 states that RNA is typically single-stranded, while Tab 1 states that DNA is double-stranded. Thus, this statement is incorrect.
DNA is less stable than RNA.
• Tab 3 states that DNA is more stable and RNA is less stable. Thus, this statement is incorrect.
Correct answer:
The four nucleotide bases in RNA are adenine (A), cytosine (C), guanine (G), and uracil (U), which replaces thymine (T) found in DNA. "Correct"
DNA and RNA are typically double-stranded molecules. "Incorrect"
DNA is less stable than RNA. "Incorrect"
