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tensa zangetsu [6.8K]
2 years ago
5

_____________ and __________ are the components of ribosomes.

Biology
2 answers:
Rainbow [258]2 years ago
8 0

Answer: The correct answer is rRNA and protein.

Explanation:

Ribosome is a cell organelle present in the cytoplasm of all living cells. It is a site of protein synthesis in all type of cells. It is made up of two sub-units namely, small sub-unit and large sub-unit.

Both the sub-units are formed by rRNA (ribosomal RNA) and associated proteins. rRNA is ribozyme, that is, it is a ribonucleic acid with catalytic ability. The protein component helps in providing the structure to the ribosome.

ELEN [110]2 years ago
7 0

Answer:

RNA and proteins.

Explanation:

Ribosomes are membrane-free granules made up of protein-associated RNA molecules, present in all cell types and visible only through the electron microscope. They are formed by two subunits of different sizes and densities, being called major and minor.

Ribosomes are responsible for the synthesis of proteins by joining their amino acids. This synthesis is controlled by mRNA (messenger RNA) formed in gene transcription under DNA command. MRNA, associated with a group of ribosomes called polyribosomes, guides the sequence of amino acids that will form proteins. These amino acids are brought by the tRNA (carrier RNA) and are nested according to the sequence determined by the mRNA. As polyribosomes traverse the mRNA strand, proteins are synthesized.

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What is the Difference between DNA & RNA?
Travka [436]
DNA is deoxyribonucleic acid while RNA is ribonucleic acid !

DNA has base pair of adenine guanine thymine and cytosine.....while RNA has adenine guanine cytosine and uracil !

DNA is always double helix while RNA is mainly single helix !

DNA contains genetic info for 99℅ of organism while RNA is being catalytic and unstable than DNA is only present as genetic information holder in 1℅ !

DNA does not involve in protein synthesis directly but RNA has to !

for more difference, comment !
8 0
3 years ago
A drug that blocks the action of the neurotransmitter is called _____.
Nitella [24]
Answer is B. 

Antagonist is a drug that blocks the action of the neurotransmitter.

Hope it helped you.

-Charlie
3 0
3 years ago
What organs/systems is affected by the sympathetic nervous system but is NOT affected by the parasympathetic nervous system?
Mariulka [41]

Answer: cellular metabolism

Explanation:

Cellular metabolism is chemical reactions that takes place in living organisms so that they will be able to maintain life. Cellular metabolism is made up of thousands of genes, metabolites and proteins.

Cellular metabolism is affected by the sympathetic nervous system but is not affected by the parasympathetic nervous system.

8 0
3 years ago
A rooster with gray feathers is mated with a hen of the same phenotype. Among their offspring, 15 chicks are gray, 6 are black,
m_a_m_a [10]

Answer:

Alleles for feather colour exhibit incomplete dominance or co-dominance.

50% gray offspring + 50% black offspring

Explanation:

<em>It means that the alleles for feather colour in the hen exhibit incomplete dominance or co-dominance over one another.</em>

Assuming the allele for white colour is B, white colour will be b while the heterozygote Bb gives the gray phenotype.

Gray rooster + gray hen = 15 gray chicks, 6 black chicks and 8 white chicks.

15:6:8 is roughly 2:1:1 which is phenotypic ratio obtainable from crossing two heterozygous individuals as pointed out by Mendel.

Bb   x   Bb = 1BB, 2Bb, and 1bb

Crossing the gray rooster (Bb) with a black hen (bb):

Bb   x   bb = Bb, Bb, bb, and bb

          = 2Bb (gray):2bb (black)

50% of the offspring will be gray while the remaining 50% will be black.

7 0
3 years ago
A star that collapses becomes what
Sati [7]

Answer: A star that collaspes is called a neutron star

Explanation: Have a great day! ;)

4 0
2 years ago
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