Gene expression in prokaryotes is regulated at which stage?

Answers

Answer 1

Answer: Gene expression in prokaryotes can be regulated at multiple stages including transcriptional and co-translational. Operons respond routinely to the presence of specific metabolites and change the availability of activators and repressors while speific end products of biosynthetic pathways can regulate the translatability of mRNAs for new proteins.

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The definition of a root
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A mixture of oxygen, hydrogen, and nitrogen exerts a total pressure of 378 kPa. If the partial pressures of oxygen and hydrogen are 212 kPa and 101 kPa respectively, find the partial pressure exerted by nitrogen.A. 65 kpa
B. 313 kpa
C. 166 kpa
D. 277 kpa

Answers

As we know that

P total = pO +pH +pN

P = P1 + P2 + P3

378 kPa= 212 kPa + 101 kPa + P(H2)

P(H2) = 65 kPa

partial pressure is 65

so correct option is A

hope it helps

Answer:

The correct answer is option A.

Explanation:

Total pressure of mixture = p = 378 kPa

Partial pressure of the oxygen gas = $p^o_(O_2)=212 kPa$

Partial pressure of the hydrogen gas = $p^o_(H_2)=101 kPa$

Partial pressure of the nitrogen gas = $p^o_(N_2)=?$

As we know that total pressure is sum of partial pressures exerted by all the individual gases.

$p=p^o_(O_2)+p^o_(H_2)+p^o_(N_2)$

$378 kpa=212 kPa+101 kPa+p^o_(N_2)$

$p^o_(N_2)=378 kPa - 212 kPa-101 kPa=65 kPa$

65 kPa the partial pressure exerted by nitrogen.

Which force is responsible for waves and surface currents? a. heat
b. friction
c. gravity
d. pressure

Answers

Ocean tides are caused by the gravitation of the Moon. Currents can beformed by the flow of tidal water around the continental plates, or by adifference in water temperature between large ocean areas. Surfacewaves are caused by the wind. Abnormal waves can be created by thetectonic movement of plates around and under the ocean floor (tsunamis).So as you can see, the answer is (C) Gravity

* PLZ Mark my answer as Brainliest. I need them. Plz and thanks

The _________ is the actual genes that an organism has. For example: HH, Hh or hh.A. Genotype
B. Phenotype
C. Heterozygous
D. Homozygous

Answers

I would belive the answer is A. Genotype

In a certain ecosystem, the number of cheetahs is lower as compared to their prey, gazelles. If the cheetahs disappeared from this ecosystem, then the number of gazelles will increase. This will disrupt the ecosystem of the forest because the gazelles will compete for limited food resources and possibly exhaust them. In this scenario, what type of species are cheetahs?

Answers

Answer:

a keystone species

Explanation:

A keystone species is a species that plays a key role in the balance of the entire ecosystem. Some examples of keynote species that are critical for their ecosystems include sharks, African elephants, sea otters, etc. The most important feature that defines a keynote species is the fact that these species have a huge influence on the food web dynamics. Moreover, keystone species are also characterized by a low functional redundancy (ie., they cannot be replaced by other species within the ecosystem).

At what time of the year are most of the animals living in a temperate forest likely to reproduce? (1 point) In fall or winter to take advantage of food that grew in summer Generally in winter since food can be stockpiled and adults can rest At any time during the year since food is equally available all year In spring and summer to coincide with the growing season

Answers

They reproduce in spring and summer to coincide with the growing season. Food grows in the spring in summer because it is warmer and is a perfect climate for plants. In winter and fall, most plants die and food is scarce. That is why animals go into hibernation.

Answer:

The answer is A in spring and summer

Explanation:

The _____ tube brings a mature ovum to the uterus. fallopian ovarian Cowper

Answers

The correct answer is fallopian tube.

The fallopian tube, also known as uterine tube or oviduct, carries the egg from ovary to the uterus.

The fallopian tube has finger-like projections or branches called fimbriae which reach out into the pelvic cavity and pick up an egg that has been released from the ovary.

The egg is tenderly brought into the fallopian tube where it begins to travel to the uterus.

The fallopian tube also serves as the location where fertilization of the egg by a sperm cell occurs.

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