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trasher [3.6K]
3 years ago
13

The australopithecus lineage went extinct about:

Biology
1 answer:
Sladkaya [172]3 years ago
7 0
Went extinct in East Africa and South Africa by 1.0 million years ago.
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A transcriptional repressor that controls the transcription of gene A is not normally active unless bound by an effector molecul
vodomira [7]

Answer:

Transcription of gene A is not affected

Explanation:

A transcriptional repressor is a DNA/RNA-binding protein that acts to suppress gene expression and/or protein synthesis by binding to target sequences. Moreover, a silencer is a DNA region that binds to particular transcriptional repressors in order to suppress gene expression. In this case, the transcriptional repressor is activated by binding to an effector molecule X (e.g., another protein). In consequence, and since the activated repressor-X complex is not more able to bind the silencer of gene A, it is expected that such complex will not be able to affect transcription of the target gene.

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What are the basic structural units that form the tropical coral reefs?
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Answer:

coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.

Explanation:

that is all I can say.

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How do you test for odors during a lab investigation?
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Hey there! :)

During a lab investigation containing liquids of any kind, you should always test the odor by waving your hand over the top of an open container and sniffing cautiously. This is called wafting, and should always be used in the case that a harmful chemical is being tested.

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