Please help!!!

A researcher exposes a bacterial culture to UV radiation and then subjects it to progressively higher temperatures. As the tempe

svetoff [14.1K]

Answer:

C. Molecular chaperones have been mutated.

Explanation:

In prokaryotes; transcription and translation occur consecutively. Protein doubling additionally happens following the translation. The heat stun proteins or molecular chaperones are imperative to assume a part in the appropriate collapsing of the protein. At high-ranging temperatures, the protein misfolding can be ascribed to a change in mutation of the molecular chaperones.

8 0

3 years ago

Darwin's ideas espoused in both Origin of Species and The Descent of Man were incompatible with the prevalent scientific racism

Maru [420]

Answer:

The correct answer is "change".

Explanation:

The missing options of this question are:

A. natural selection.

B. immutability.

C. survival of the fittest.

D. change.

The correct answer is option D. "change".

The scientific racism that was prevalent during Charles Darwin books publications was related to the concept of "pure races", and the association of the inheritance of the "superior attributes" related to these races. Darwin's ideas were incompatible to this scientific racism, since Charle Darwin theories support the idea of a constant change among all people attributes, produced by genetics behavior and exposure to environmental factors.

5 0

3 years ago

Meselson and Stahl used density labeling of DNA to show that DNA replication occurs via a semiconservative mechanism. In their e

cricket20 [7]

Answer:

The organism previously used 15N for replication so all the DNA molecules were of 15N15N type. Then the organism is shifted to a medium where only 14N is available for replication.
According to semi conservative mode of replication, a newly synthesised DNA molecule consists of one new strand and one parental strand. So after the first round of replication, All the 15N strands will synthesise new DNA strands using 14N resulting into intermediate 15N14N DNA molecules. Hence, only one band would be observed (15N14N) above the original 15N15N band since 15N14N has lighter isotope too so it will be lighter than 15N15N molecules and will lie above it.
After second round of replication, 15N strand from 15N14N would synthesise another 14N strand. 14N strand from 15N14N molecules will also synthesise another 14N strand. So now, 50% of the DNA molecules will be of 15N14N intermediate type and 50% of them will be of 14N14N type.Two bands will be observed above the original 15N15N band. One band of 15N14N molecules will be right above it and other band of 14N14N molecules will be even higher because it is the lightest band since it has only the lighter isotope of nitrogen.

8 0

3 years ago

Both the hair and skin contain keratin. When comparing the hair shaft to the skin which layer of the epidermis is most similar?

Paha777 [63]

Answer:straum and straum

Explanation:

they both have the same name

3 0

2 years ago

Capsular hydrostatic pressure is the chief force pushing water and solutes out of the blood and across the filtration membrane.

netineya [11]

Answer:

True

Explanation:

Capsular hydrostatic pressure (CHP) is a back-pressure that opposes filtration. As the filtrate is forced into the capsular space, it meets 2 forms of resistance: the wall of the capsule and the fluid that has already filled the renal tubule.

This pressure drives fluid out of the capillary (i.e., filtration), and is highest at the arteriolar end of the capillary and lowest at the venular end.

5 0

3 years ago