If the atomic number of an element is 5 and its mass number is 20, how many neutrons are in the atom's nucleus? _______ neutrons

1 answer:

8 0

The mass of an atom comes from the protons and neutrons that are found in the nucleus. The number of protons is the atomic number of an element. To find the number of neutrons, subtract the atomic number from the mass of an atom. So the number of neutrons are 20 (mass number) - 5 (atomic number) = 15 neutrons.

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Put the following processes of protein synthesis in the correct order.

diamong [38]

Correct sequential order for the following processes of protein synthesis are as follows:

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

Explanation:

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.

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Which characteristics describe bacteria? Check all that apply. are microscopic are single celled are multicelled have shapes tha

Angelina_Jolie [31]

Answer:

Are microscopic

Are single celled

Have shapes that include sphere, rod, and spiral

Do not have nuclei and membrane-bound organelles

Explanation:

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