which of the following could not be an rna transcript course hero

Full Answer

Which portion of the primary RNA transcript is removed because it does not encode a functional protein?

Splicing of eukaryotic primary RNA transcripts removes the introns, leaving the exons connected together in a functional message. Primary transcripts are also called heterogeneous nuclear RNA (hnRNA), since they contain from zero to as many as 50 introns of variable length.

In which way does RNA differ from DNA?

There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.

What is the process of forming RNA from DNA?

Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).

Why is tRNA necessary for translation?

During translation, these tRNAs carry amino acids to the ribosome and join with their complementary codons. Then, the assembled amino acids are joined together as the ribosome, with its resident rRNAs, moves along the mRNA molecule in a ratchet-like motion.

Which of the following is not found in RNA?

Uracil is present in the RNA whereas in the DNA we see thymine instead of Uracil. Thus thymine is absent from the RNA.

What are the 3 types of RNA?

Three main types of RNA are involved in protein synthesis. They are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). rRNA forms ribosomes, which are essential in protein synthesis. A ribosome contains a large and small ribosomal subunit.

What are the 4 steps of transcription?

The major steps of transcription are initiation, promoter clearance, elongation, and termination.

What are the 3 main steps of transcription?

Transcription of a gene takes place in three stages: initiation, elongation, and termination.

Which of the following is not involved in transcription?

Both tRNA and rRNA are not translated to form proteins but are involved in the translation process to support mRNA for synthesizing proteins. Hence, mRNA and tRNA are not involved in the transcription process but are formed as a product.

Which of the following is not required for translation?

DNAAnswer and Explanation: DNA is not needed for translation. The job of DNA is to store information in the nucleus and function as the template for DNA replication and RNA transcription. Translation requires mRNA, tRNAs charged with specific amino acids, and ribosomes.

Which of the following tRNA does not exist?

So, the correct answer is 'Stop codon'.

What Rnas are needed for translation?

Posted June 22, 2020. The key components required for translation are mRNA, ribosomes, transfer RNA (tRNA) and various enzymatic factors. mRNA: mRNA carries the sequence information for the protein to be synthesized. Each three bases in mRNA are read as a codon; each codon codes for a particular amino acid.

How does RNA differ from DNA quizlet?

How is RNA different from DNA? RNA is different from DNA is three ways: (1) the sugar in RNA is ribose not dioxyribose; (2) RNA is generally single-stranded and not double-stranded; and (3) RNA contains uracil in place of thymine.

How does RNA differ from DNA Quizizz?

RNA contains sucrose while DNA contains glucose. DNA contains deoxyribose while RNA contains ribose. Two other differences between RNA and DNA involve... the fact that one is composed of purines while the other is composed of pyrimidines.

What are the differences between DNA and RNA quizlet?

The three main differences between RNA and DNA is that (1) The sugar in RNA is ribose instead of deoxyribose, (2) RNA is generally single-stranded and not double-stranded , and (3) RNA contain uracil in place of thymine.

What are the 4 main differences between DNA and RNA?

STRUCTURE. DNA is usually double stranded, has two separate strands that are connected while RNA is single stranded.SIZE. DNA is much larger than RNA with millions of nucleotides while RNA is smaller with hundreds of nucleotides.SUGAR STRUCTURE. ... LOCATION. ... NITROGENOUS BASES. ... REPLICATION AND GROWTH. ... GEOMETRY.

What is the term for the stage of a tumor that spreads in adjacent tissues and in the rest of the body?

b. in some conditions, tumor cells may spread in adjacent tissues and in the rest of the body, a stage called metastasis

Does C. come with stop codons?

c. also comes equipped with stop codons

Can a new codon change the function of a protein?

a. the new codon may specify a different amino acid but may not change the function of the protein produced