Question

Fill in the blank.

Answer 1

Answer:

Uracil, nucleus, amino acid,  RNA

Explanation:

There are four nucleotide bases present in DNA and RNA, three of them ar esame in both that includes Adenine, Guanine and Cytocine but one base is different that includes Thymine in DNA and Uracil in RNA.

In eukaryotes, RNA is transcribed in the nucleus which is transported to the cytoplasm and further translated by the ribososm.

The physical link between tRNA molceules and mRNA , if it is carrying an amino acid. The tRNA molecules matches the amino acids to Codons in mRNA and link with hydrogen bonds.

The ribososme is made of RNA and proteins.

Hence, the sequential order of blanks will be filled with Uracil, nucleus, amino acid,  RNA.

DNA are RNA are two important components of living body. they have some similiarities and differences as well. They differ in their structure as DNA has double stranded or double helical structure while RNA is single stranded. similarities in the structure of DNA nd RNA is that they both have phosphorus backbone attached with four nitrogenous bases each.

There are three major types of RNA including messenger RNA (mRNA), ribosomal RNA (rRNA) nad transfer RNA (tRNA) functions for serving as temporary copies of the information found in DNA, serve as structural components of ribosomes (protein-making structures) and tranfer amino acids to the ribosome respectively.

Retroviruses are type of virus that carry reverse transcriptase to translate its genetic information into DNA. it inserts a copy of its genome into the host cell DNA and change the genome of that cell. example of retrovirus is human immunodeficiency virus (HIV) that causes acquired immunodeficiency syndrome (AIDS) in humans.

Answer 2

1. uracil

2. nucleus

3. amino acids

4. rRNA

5. DNA and RNA are both chains of nucleotides. A sugar and phosphate backbone forms the outside helix of these molecules, and the nitrogenous bases are on the inside of the helix. The sugar used in DNA is deoxyribose, while the sugar used in RNA is ribose. DNA is double-stranded, with antiparallel strands, while RNA typically is single-stranded. Both DNA and RNA have directionality, which means that they have a 5' end and a 3' end. DNA and RNA are both synthesized from the 5' to 3' end by cellular machinery.

6. Messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA) are the three main RNA types involved in protein synthesis. mRNA carries the genetic information from the DNA in the cell nucleus to the cytoplasm to give the ribosome instructions on how to assemble the appropriate amino acids for protein synthesis. tRNA reads the mRNA message and carries the specific amino acids to be added to the polypeptide chain. rRNA assembles with ribosomal proteins to comprise the ribosome, which is the cellular machinery that produces proteins.

7. A retrovirus is a virus that uses RNA, not DNA, as its genetic material. Once a retrovirus infects a cell, it uses an enzyme called reverse transcriptase to turn its RNA into DNA, which it then incorporates into the host cell. This enables the virus to multiply and infect the organism's cells. Human Immunodeficiency Virus (HIV), the virus that leads to Acquired Immunodeficiency Syndrome (AIDS), is an example of a retrovirus.