In a normal diet the 50-55% of the total calories should come from carbohydrates
Answer: The mass number is 13
Explanation:
Mass number = Protrons + neutrons;
While Atomic number = Number of neutrons
Therefore, if the atomic number of nitrogen is given as 7, then its Protrons = 7
So, mass number = 7 + 6 = 13
<u>Correct sequential order for the following processes of protein synthesis are as follows:</u>
- DNA strands unwind and separate
-
mRNA copies DNA according to complimentary base pairing
- mRNA leaves the nucleus
- tRNA’s anticodons bring amino acids to the corresponding mRNA codons at the ribosomes
- amino acids bind to each other making a polypeptide
-
a stop codon is reached, the newly formed a protein is released to go do its job for the cell
Option A --> B --> C --> E --> D -->F
<u>Explanation:</u>
Protein synthesis involves three major steps which are Replication of DNA, which is then transcribed and then translated to form protein, so the steps are Replication, Transcription and Translation.
Firstly, the DNA is a double stranded molecule which needs to be unwind as a replica where one of the strand becomes the template strand and transcription of strand occurs with mRNA.
mRNA thus leaves the nucleus and reaches cytoplasm where translation takes places and the tRNA provides specific anti codons to the mRNA codons and the amino acids are formed.
All amino acids bind to each other in order to make a polypeptide and hence the protein molecule newly formed is released to the cell.
Diploid cells contain 2 sets of the same DNA where as haploid contains one set.....so our normal cells in our body (somatic cells) are diploid however our sex cells(gametic cells) which are the egg of a woman and sperm from a guy are only haploid which means they have only 1 copy of DNA......this is because they fuse with one another and add their DNA together to make a diploid cell
The answer would be 12 because Carbon has 6 Protons, which means that it has the same number of neutrons and electrons.
