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mote1985 [20]
3 years ago
10

Explain how asexual and sexual reproduction are different with emphasis or genetic diversity

Biology
1 answer:
LenaWriter [7]3 years ago
3 0
Asexual reproduction is undergone by thing like bacteria, asexual reproduction is not really diverse as it is an exact copy of the bacteria making it genetically identical. Meanwhile things like animals and humans undergo sexual reproduction making it really diverse as the offspring will have genes from mother and father, obtaining certain traits and is high in terms of diversity as the offspring is genetically unique.
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2 years ago
The lactose (lac) operon in E. coli is an example of a repressed gene when lactose is not available in a cell. In 3-5 sentences
irakobra [83]

Answer:

Please find the detailed explanation of this statement below

Explanation:

Firstly, a repressed gene is a gene whose expression has been inhibited or repressed. The lac operon in E.coli bacteria is a regulatory unit containing structural genes, a single promoter and operator regions. The promoter is the region where the transcription enzyme (RNA polymerase) binds to in order to transcribe the genes in the lac operon. The structural genes in the lac operon can only be expressed in the presence of lactose sugar.

However, in the absence of lactose, LAC REPRESSOR, which is a transcription factor (protein), prevents the binding of RNA polymerase to the PROMOTER region by binding to the OPERATOR region of the lac operon. This inhibits the expression of the lactose genes in the operon.

Note that, the structural genes in the lac operon (lacZ, lacY, lacA) code for proteins that help break down lactose sugar for energy in the E.coli bacteria. Therefore, a bacteria cell with a repressed lac operon will be unable to degrade lactose sugar.

4 0
3 years ago
Compare and contrast the structures and functions of DNA, mRNA, and tRNA
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2 years ago
Reasons why the queen is the most important in the hive.<br> (No LINK)
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Answer:

I assume you are referring to bees?

Explanation:

From what I know and this is just surface level knowledge, she is the one who births the hive and usually designates their purpose once she has laid the eggs. She herself does not do much, she is just the one that the infrastructure of the hive follows in maintaining the hive itself. I hope this helps. Good luck!

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Explanation:

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