3 years ago

Who first identified DNA?

2 answers:

6 0

Answer:

Friedrich Miecher was the Swiss chemist who first identified DNA in 1860. It was first identified in the nuclein which is found inside nuclei of the human white blood cells. The nuclein was later on named as nucleic acid. The type of nucleic acid was identified as deoxyribonucelic acid.

NemiM [27]3 years ago

5 0

DNA was first identified by Friedrich Miescher in 1869 at the University of Tübingen.

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What is the name of thespecific organelle that is studded with ribosomes in a eukaryoticcell?

Alik [6]

Answer:

The (rough) endoplasmic reticulum

Explanation:

The endoplasmic reticulum is a system of interconnected membranes that functions in the synthesis of several membrane-related proteins and lipids. There are two types of endoplasmic reticulum in the eukaryotic cell;

Smooth endoplasmic reticulum
Rough endoplasmic reticulum

The smooth endoplasmic reticulum is actually smooth because it has no ribosome attachment while the rough endoplasmic reticulum appears rough due to the attachment by ribosomes.

Therefore, the name of the specific organelle that is studded with ribosomes in eukaryotic cell is endoplasmic reticulum.

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Use the phylogenetic tree to the right to determine which statement below is true.

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C Rodents and rabbits are most closely related to primates.