Uracil pairs with(1 point)

Question

Responses

any nitrogen base.
any nitrogen base.

uracil.
uracil.

thymine.
thymine.

adenine.

Alexei Romanov suffered from hemophilia, a condition that(1 point)
Responses

causes the body to produce too many blood cells due to the body’s inability to form fibrin proteins.
causes the body to produce too many blood cells due to the body’s inability to form fibrin proteins.

prevents the body from absorbing vitamin B12 due to the body’s inability to form fibrin proteins.
prevents the body from absorbing vitamin B12 due to the body’s inability to form fibrin proteins.

causes the body to produce abnormally shaped red blood cells due to the body’s inability to form fibrin proteins.
causes the body to produce abnormally shaped red blood cells due to the body’s inability to form fibrin proteins.

prevents blood from clotting normally due to the body’s inability to form fibrin proteins.
prevents blood from clotting normally due to the body’s inability to form fibrin proteins.

The amino acid serine is coded by the mRNA codon AGU. What is the base sequence of the DNA gene that originally produced this mRNA codon?(1 point)
Responses

UCA
UCA

TCC
TCC

TCA
TCA

AGU
AGU

Select the statement that is true.(1 point)
Responses

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.
DNA has the sugar deoxyribose, while RNA has the sugar ribose.

Translation copies DNA to mRNA, while transcription converts mRNA into proteins.
Translation copies DNA to mRNA, while transcription converts mRNA into proteins.

Thymine is only present in DNA, while cytosine is only present in RNA.

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.

Answer 1

Here are the correct responses for each of the questions:

1. Uracil pairs with:

   • adenine.
     (Uracil (U) pairs with adenine (A) in RNA, while thymine (T) pairs with adenine (A) in DNA.)

2. Alexei Romanov suffered from hemophilia, a condition that:

   • prevents blood from clotting normally due to the body’s inability to form fibrin proteins.
     (Hemophilia is a genetic disorder that affects the blood's ability to clot.)

3. The amino acid serine is coded by the mRNA codon AGU. What is the base sequence of the DNA gene that originally produced this mRNA codon?

   • TCA.
     (The corresponding DNA sequence that would transcribe to mRNA codon AGU is TCA, as DNA uses thymine (T) instead of uracil (U).)

4. Select the statement that is true:

   • DNA has the sugar deoxyribose, while RNA has the sugar ribose.
     (This statement is true; DNA contains deoxyribose sugar, while RNA contains ribose sugar.)

5. What role does tRNA play in the translation process?

   • tRNA carries amino acids to the ribosome and helps form proteins.
     (tRNA is responsible for bringing the appropriate amino acids to the ribosome during the translation process to build proteins.)