Select the statement that is true.(1 point)
Responses
DNA has the sugar deoxyribose, while RNA has the sugar ribose.
DNA has the sugar deoxyribose, while RNA has the sugar ribose.
Translation copies DNA to mRNA, while transcription converts mRNA into proteins.
Thymine is only present in DNA, while cytosine is only present in RNA.
Thymine is only present in DNA, while cytosine is only present in RNA.
DNA and RNA are both double-stranded.
DNA and RNA are both double-stranded.
DNA has the sugar deoxyribose, while RNA has the sugar ribose.
To determine which statement is true, let's go through each option.
Option 1: "DNA has the sugar deoxyribose, while RNA has the sugar ribose."
To verify this statement, we need to know the types of sugars present in DNA and RNA. DNA indeed contains the sugar deoxyribose, while RNA contains the sugar ribose. Therefore, this statement is true.
Option 2: "Translation copies DNA to mRNA, while transcription converts mRNA into proteins."
This statement describes the processes of transcription and translation. However, it seems to be incorrectly stated. In reality, transcription copies DNA into mRNA, and then translation converts the mRNA into proteins. Since the statement is inaccurate, we can conclude that it is false.
Option 3: "Thymine is only present in DNA, while cytosine is only present in RNA."
We need to determine whether thymine and cytosine are present in DNA and RNA, respectively. Thymine is indeed found only in DNA, while cytosine is present in both DNA and RNA. Thus, this statement is false.
Option 4: "DNA and RNA are both double-stranded."
To check this statement, we need to consider the structure of DNA and RNA. DNA is typically double-stranded, consisting of two complementary strands that are antiparallel. On the other hand, RNA is usually single-stranded. Therefore, this statement is false.
Based on our analysis, the only true statement is:
Option 1: "DNA has the sugar deoxyribose, while RNA has the sugar ribose."
The statement that is true is: DNA has the sugar deoxyribose, while RNA has the sugar ribose.
What role does tRNA play in the translation process?(1 point)
Responses
tRNA bonds the amino acids together to then form proteins.
tRNA bonds the amino acids together to then form proteins.
tRNA carries amino acids to the ribosome and helps form proteins.
tRNA carries amino acids to the ribosome and helps form proteins.
tRNA converts DNA into mRNA.
tRNA converts DNA into mRNA.
tRNA holds the "stop" codon to alert ribosomes to end protein production.