Which 16th century scientist described the process of uniformitarianism?

a small population of chimpanzees lives in a habitat that undergoes no changes for a long period. how will genetic drift probabl

vlada-n [284]

It will effect the population slowly.

4 0

3 years ago

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Two protein kinases, K1 and K2, function sequentially in an intracellular signaling pathway. If either kinase contains a mutatio

Korolek [52]

Answer:

The order must be K2→K1, since the permanently active K1 allele (K1a) is able to propagate the signal onward even when its upstream activator K2 is inactive (K2i). The reverse order would have resulted in a failure to signal (K1a→K2i), since the permanently active K1a kinase would be attempting to activate a dead K2i kinase.

Explanation:

You characterize a double mutant cell that contains K2 with type I mutation and K1 with type II mutation.
You observe that the response is seen even when no extracellular signal is provided.
In the normal pathway, i f K1 activat es K2, we expect t his combinat ion of two m utants to show no response with or without ext racell ular signal. This is because no matt er how active K1 i s, it would be unable to act ivate a mutant K2 that i s an activit y defi cient. If we reverse the order, K2 activating K1, the above observati on is valid. Therefore, in the normal signaling pathway, K2 activates K1.

7 0

4 years ago

some biology students wanted to determine whether a pair of brown mice purchaced at a pet store was homozygous dominant of heter

lawyer [7]

Do a punnet square or something because you didn't give any info.

6 0

4 years ago

The higher plant type that carries its seeds in cones is the ________.

natta225 [31]

The higher plant type that carries its seeds in cones is the gymnosperm. Any vascular plant that imitates by methods for an uncovered seed, or ovule—not at all like angiosperms, or blossoming plants, whose seeds are encased by develop ovaries, or organic products.

5 0

3 years ago

A paramecium moves by means of _______________ . feet tiny hairs reproduction

____ [38]

A paramecium moves by mean of - cilia a tiny living thing found in water is a single* cell shaped like a slipper and moves by means of cilia,

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<h3>Hope this helps you❤!!</h3><h3 />

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3 years ago

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