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ch4aika [34]
4 years ago
7

What happens right before RNA polymerase begins to work

Biology
2 answers:
Fiesta28 [93]4 years ago
5 0

Answer: Binding to the promoter

Explanation:

Before the RNA polymerase begins work, it binds to the promoter regio

Mashutka [201]4 years ago
4 0

Answer:

The DNA double helix unwinds.

Explanation:

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Suppose an astronomer discovers a large, spherical-shaped body orbiting the sun. The body is composed mostly of rock, and there
Ratling [72]

Answer: The body discovered is Planet

Explanation:

A planet is an astronomical body orbiting a star (sun) usually rocky like in nature that is massive enough to be rounded by its own gravity.

7 0
4 years ago
____________ is the preservation of all cellular and structural elements in as nearly the natural living condition as possible.
andriy [413]

Answer:

Cryopreservation

Plant Vitrification Solution 2 (PVS2)  and  Plant Vitrification Solution 3 (PVS3)

Explanation:

Cryo-preservation or cryo-conservation is defined as the process of preservation of all cellular and structural elements such as cells, organelles, tissues, organs, or any other biological constructs by cooling to very low temperatures.

Two commonly used solutions in plants for this purpose are Plant Vitrification Solution 2 (PVS2)  and  Plant Vitrification Solution 3 (PVS3). Plant Vitrification Solution 2 (PVS2) is consists of, w/v, 0.4 M sucrose, 30% glycerol, 15% DMSO and  15% ethylene glycol and Plant Vitrification Solution 3 (PVS3) comprising, w/v, 50% sucrose and 50% glycerol.

Hence, the correct answer is "Cryopreservation

Plant Vitrification Solution 2 (PVS2)  and  Plant Vitrification Solution 3 (PVS3) "

4 0
3 years ago
An airplane flies with a constant speed of 768 km/h. How long will it take to travel a distance of 2496 kilometers?
Aleonysh [2.5K]

Answer:

The correct answer is - 3 hours 15 minutes.

Explanation:

Given:

Speed = 768 km/h

distance = 2496

Solution:

Converting speed in km/minutes:

768/60 = 12.8

Now by the formula,

Time = distance/speed

time = 2496/12.8

=195 minutes

converting in hour  = 195/60

= 3 hour 15 minutes.

6 0
3 years ago
Justin and Katie are siblings that have the same parents. Justin has brown hair like his father. Katie has blonde hair like her
Akimi4 [234]

Answer:

d

Explanation:

4 0
3 years ago
Changing a river into a lake is basically what a large dam does. One reason we do this to create reservoirs of fresh water. Howe
avanturin [10]
The answer is (D) sometimes people who lived along the banks of the river are displaced
4 0
4 years ago
Read 2 more answers
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