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Misha Larkins [42]
3 years ago
7

Cells in culture will absorb amino acids form the surround culture medium. If radioactively labelled glycine,

Biology
1 answer:
Norma-Jean [14]3 years ago
3 0

Answer:

A

Explanation:

Radioactively labelled amino acids will be found in the ribosomes. These are the organelles that are the site of protein synthesis.

Amino acids are taken up into the cytoplasm from the surrounding cell culture medium. Amino acids are then bound to tRNAs (with the enzyme aminoacyl-tRNA synthetases) and taken to the ribosome, where they are assembled into a polypeptide chain by the translation machinery.

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Hi!!!! Please help!! Desperately need biology help!
OLga [1]

Answer no 8:

The correct option is D) Antelopes with muscular legs are bale to outrun their predators better than antelopes with poor muscle tone. Thus they lived to reproduce.

Explanation:

Genetic variations in a population are the main reason that natural selection tends to occur. Natural selection favours those organisms which have better characteristics.The organisms with better traits are able to reproduce and pass on their characteristics to their offsprings.

Answer No 10:

The correct option is A) Phenotype directly influences the interaction of an organism with its environment.

Explanation:

The interactions between the phenotypic traits and the environment analyze whether a particular organism will be able to survive and pass on its characteristics to its offspring. Hence, the phenotype directly influences the interaction of an organism with its environment.

Answer No 9

The correct option is A) resistance to a virus

Explanation:

Mutations can be described as any changes which occur in the DNA of an organism. Mutations might be beneficial or harmful depending on the location where the mutation arises. Viruses are usually harmful for eukaryotes. Hence, the correct option is A.

Answer No 11:

The correct option is C) Giraffes with longer necks survived because they were better suited to the environment.

Explanation:

Natural selection tends to favour those organsims which are better suited to live in an environment. Those organisms with better characteristics are able to survive and pass on their traits to their offsprings.

The giraffes with longer necks were better adapted to live in the environment and hence were favoured by natural selection.

Answer No  12:

The correct option is D) selective breeding

Explanation:

Selective breeding can be described as a technique in which organisms with better characteristics are crossed, so that offsprings with better characteristics can be produced. Selective breeding is done by humans where as natural selection is done by the nature.

7 0
3 years ago
Which air mass often originates as a different air mass in siberia and is subsequently altered?
podryga [215]
It is a cold Artic air mass over Siberia. Air masses are altered because it doesn't stay in one place and changes as it moves due to the temperature of environment that can be caused by moisture. The cold Artic Mass from Siberia will go to the North Pole, Canada then moves further to the South area.
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3 years ago
Cellular respiration uses the products of photosynthesis __________& ___________ and produces _________ gas, _________ &
defon

Explanation:

oxygen and glucose

carbon dioxide gas, water and ATP.

hope it helps. :)

4 0
2 years ago
NEED HELP asap * is my answer
il63 [147K]
The DV is measured for results
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Which of the following about the biosphere is true?
dimaraw [331]

Answer:

c. it can be considered a global ecosystem

3 0
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