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Naddika [18.5K]
3 years ago
6

In the hershey-chase experiment, bacterial cultures infected with a virus were agitated in a kitchen blender to _____.

Biology
2 answers:
allsm [11]3 years ago
6 0

The Hershey-Chase experiment was a key experiment in the field of biolgy that established DNA has the inheritable genetic material between the generations of organisms.

In the hershey-chase experiment, bacterial cultures infected with a virus were agitated in a kitchen blender to detach the phage from the bacteria. This step was followed by centrifugation to separate the phage coats from the bacteria.

Phantasy [73]3 years ago
3 0

The Hershey and Chase experiments showed that the inherited genetic material was DNA (deoxyribonucleic acids). In this experiment, the scientists labelled the DNA molecule with a radioactive isotope of phosphorus.

Centrifugation causes the separation of different components according to their size. So, by blending, they centrifugated the mixture of virus and the bacteria, which separated the viral protein capsule and the bacteria. Later, they found that the virus infected bacteria contains the DNA of bacteria, not the protein.

Hence, bacterial cultures infected with a virus were agitated in a kitchen blender to separate the protein coat of virus from the bacteria.

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Hope thishelps!!

Explanation:

7 0
2 years ago
The following sequence of double stranded DNA encodes a hypothetical protein called GEN in a bacteria. Transcription starts at a
vaieri [72.5K]

Answer:

A) AUG GAG GGU

B) N-MET-GLU-GLY-HIS

C) 10 amino acids

D) The stop codon here is UAA, instead of UAG.  If a tryptophane residue is added where the stop codon is, the GEN polypeptide would be longer

Explanation:

First we must obtain the the complementary chain or mRNA

A) AUG start codon is complementary to DNA TAC triplet, and GAG is complementary to CTC, and GGU to CCA (running from left to right towards 5'DNA direction (AAGCGGATACCTCCCAGTAGATGCTCCGGGGCTAGTGATTTCGAAC-5)

B) TAC corresponds to Methionine, GAG to Glutamate, GGU to Glycine, and CAU to Histidine

C) UAA is the stop codon, that is complementary where the DNA triplet is ATT.  From AUG to UAA, we can have 10 amino acids transcribed

D) If a trp is included where the stop codon is UAA, then the mRNA would be longer with a consequent traduction of a longer GEN polypeptide

8 0
3 years ago
The homo erectus fossils from the lantian sites in china are dated to______ years old.
REY [17]

Answer: 1.15 million

Explanation:

6 0
2 years ago
Genes are sections of DNA that code for a particular trait. Genes are:
SashulF [63]
Pretty sure it’s nucleic acids
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How is modern earth different from earth over 4 billion years ago?
igor_vitrenko [27]

Earth and its atmosphere are continuously altered. Plate tectonics shift the continents, raise mountains and move the ocean floor while processes not fully understood alter the climate. Such constant change has characterized Earth since its beginning some 4 billion years ago.

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3 years ago
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