Answer:
B
Explanation:
Ribosenucleic acid (RNA) and Deoxyribosenucleic acid (DNA) are the two nucleic acids formed from building blocks called nucleotides. Although, they are formed from the same building blocks, but have structural differences.
One of the differences between RNA and DNA is that unlike DNA that is a double-stranded molecule formed by the complementary base pairing of two nitogenous bases (nucleotides), RNA is a single-stranded molecule made up of shorter nucleotides.
The hero changes from being happy to depressed or unhappy
Answer:
The correct answers are A, C and D.
Explanation:
Dialysis is a treatment given to a patient to maintain his chemical levels in the body salt. Dialysis is a treatment which removes the Extra water, wastes, salts from the patient's body. This treatment is given to the patient in case of the failure of the Kidneys which are unable to clear the body from the wastes and toxins naturally. This is a time consuming process which uses a machine to purify blood from wastes and toxins. It is not the permanent solution for the renal failure, tough it is a good temporary solution.
Phases of cell cycle:
<u>Cell cycle typically has four phases which are mentioned as under:</u>
1) G1 phase
2) S phase
3) G2 phase
4) M phase
<u>Phenotype & genotype :</u>
Phenotype is how an organism looks morphologically.
Genotype is defined as the set of allelic pairs (genes) that an organism has for a particular character/trait.
<u>DNA replication:</u>
DNA replication is a process in which an exact replica of a chromosome is synthesized during S phase of cell cycle. Various enzymes like helicase, DNA polymerases etc. and structural components like nucleotides are required during DNA replication.
<u>Transcription:</u>
Transcription is a process in which message from a DNA is encoded in the form of an RNA for gene expression i.e. for protein synthesis (translation). Various RNA polymerases facilitate transcription.
<u>Translation:</u>
The process of protein synthesis for gene expression is known as translation. Various RNAs like mRNA, tRNA and rRNA facilitate this process.
<u>Mitosis & meiosis:</u>
Mitosis : It is a process in which a cell divides to form its exact replica thereby producing two identical cells. It occurs in somatic cells.
<u>Meiosis:</u> It is a process in which a diploid cell divides to form 4 haploid daughter cells. It occurs in germ cells.