Ask question

Ask question

All categories

3 years ago

5

100 POINTS. PLEASE PROVIDE EXPLANATION

1 answer:

Murljashka [212]3 years ago

8 0

Answer:

Expression of Genes. Gene regulation is the process of controlling which genes in a cell's DNA are expressed (used to make a functional product such as a protein).In eukaryotes like humans, gene expression involves many steps, and gene regulation can occur at any of these steps.

You might be interested in

Which statements about fresh water and salt water are true? Check all that apply.

mylen [45]

Answer:

B and D

Explanation:

Fresh water is essential to all life on Earth. Most of Earth's water is stored in the oceans.

6 0

4 years ago

Read 2 more answers

A point charge is a model that represents a charge as acting uniformly on its surroundings. What other characteristic does a poi

inysia [295]

Explanation:

A point charge is a model that represents a charge as acting uniformly on its surroundings. The characteristics of a point charge are as follows :

Electric field lines are outwards if the charge is positive.

Electric field lines are inwards if the charge is negative.
If the distance from the point charge increase, the magnitude of the electric field decreases and vice versa.

3 0

3 years ago

An object with mass 1.2 kg is moving at a constant speed in a circle with radius 2.5 m. If the

SpyIntel [72]

Answer:

3.9m/s² is the acceleration

4 0

3 years ago

A ball with an initial velocity of 8.00 m/s rolls up a hill without slipping. (a) Treating the ball as a spherical shell, calcul

GrogVix [38]

Answer:

Part i)

h = 5.44 m

Part ii)

h = 3.16 m

Explanation:

Part i)

Since the ball is rolling so its total kinetic energy in this case will convert into gravitational potential energy

So we have

$\frac{1}{2}mv^2 + \frac{1}{2}I\omega^2 = mgh$

here we know that for spherical shell and pure rolling conditions

$v = R \omega$

$I = \frac{2}{3}mR^2$

$\frac{1}{2}mv^2 + \frac{1}{2}(\frac{2}{3}mR^2)(\frac{v^2}{R^2}) = mgh$

$\frac{5}{6}mv^2 = mgh$

$h = \frac{5v^2}{6g}$

$h = \frac{5(8^2)}{6(9.81)} = 5.44 m$

Part b)

If ball is not rolling and just sliding over the hill then in that case

$\frac{1}{2}mv^2 = mgh$

$h = \frac{v^2}{2g}$

$h = \frac{8^2}{2(9.81)} = 3.16 m$

3 0

3 years ago

A certain type of bird lives in two regions of a state. The distribution of weight for birds of this type in the northern region

Annette [7]

Answer: (a) Z-score are 1 and -1.2 for northern and southern regions, respectively.

Explanation: <u>Z-score</u> is how many standard deviations a data is from the population mean or how far a data point is from the mean.

The z-score is calculated by the following:

$z=\frac{x-\mu}{\sigma}$

where

x is the data point

μ is population mean

σ is standard deviation

For the <u>northern</u> <u>region</u> birds:

μ = 10, σ = 3, x = 13

$z=\frac{13-10}{3}$

z = 1

The z-score for birds living in the northern region is 1, which means it is 1 standard deviation <em>above the mean</em>.

For the southern region:

μ = 16, σ = 2.5, x = 13

$z=\frac{13-16}{2.5}$

z = -1.2

The z-score for southern living birds is -1.2, meaning it is 1.2 standard deviations <em>below the mean</em>.

6 0

3 years ago