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a_sh-v [17]
2 years ago
13

9. how do sister chromatids compare to each other?

Biology
1 answer:
ikadub [295]2 years ago
3 0

Answer:

The sister chromatids are identical to one another and are attached to each other by proteins called cohesins. They are formed.

Explanation:

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Airplanes reach cruising altitudes at the lower part of the Earth's stratosphere. This portion of the atmosphere is made up most
Lerok [7]

Answer:

The stratosphere is a layer of Earth's atmosphere. ... The troposphere, the lowest layer, is right below the stratosphere. ... Because of this, jet aircraft and weather balloons reach their maximum operational altitudes within the stratosphere. ... from the bottom of the stratosphere up to altitudes of 40 or 50 km (25 to 31 miles).

Explanation:

6 0
3 years ago
Tay-Sachs, which is a recessive lethal disease, results only when individuals possess two copies of the disease-causing allele.
VashaNatasha [74]

Answer:

a. Heterozygous individuals may pass on their copy of the disease-causing allele to offspring.

Explanation:

Tay-Sachs, which is a recessive lethal disease  ---- Let say the recessive lethal diseases is s

∴ it only results when an individual posses two copies of the diseases-causing allele i.e two copies of the disease will be ss.

Now, when two hetrozygous individuals crossed , it is obvious that each can pass on their copy of the disease-causing allele to the offspring.

Let show an illustration for the above statement.

Let the heterozygous individual be Ts, if Ts cross with another Ts;

we will have:

Ts × Ts

         T          s

T        TT        Ts

s        Ts          ss

the offspring are TT,Ts,Ts,ss

We can now see how the Heterozygous individuals pass on their copy of the disease-causing allele to the offspring (Ts).

8 0
3 years ago
Fill in the blank
professor190 [17]

Answer:

Osmosis is the diffusion of water molecules across a permeable membrane from an area of higher concentration of water molecules to an area of lower concentration of water molecules concentration until equilibrium is reached

8 0
2 years ago
Read 2 more answers
Analysis of an ecg can reveal
Solnce55 [7]

d. the condition of the conducting system.

7 0
3 years ago
List three medical services that a psychiatrist can provide but a psychologist cannot.
den301095 [7]

The difference between psychologists and psychiatrists is that a psychiatrist is a medical doctor and a psychologist is not a doctor. The three medical services that a psychiatrist can provide but a psychologist cannot are:

As psychiatrist is a medical doctor, he can prescribe medicines to treat mental health, he is allowed to order for brain images like CT scan, MRI etc. where a psychologist cannot. He can also order to perform laboratory test<span>s.</span>

4 0
3 years ago
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