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juin [17]
4 years ago
12

Portion of mutated hemogoblin dna

Biology
1 answer:
Paul [167]4 years ago
7 0

Answer:

Sickle cell anemia is a genetic disease with severe symptoms, including pain and anemia. The disease is caused by a mutated version of the gene that helps make hemoglobin — a protein that carries oxygen in red blood cells.

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The portion of the pharynx that receives air from the internal nares is the
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The portion of the pharynx that receives air from the internal nares is the nasopharynx.

Hope this helps!

-Payshence xoxo
 
4 0
3 years ago
The purpose of a control in a scientific experiment is to
WINSTONCH [101]
Observation designed to minimize the effects of variables other than the independent variable.
4 0
3 years ago
Read 2 more answers
If 1/8 remains after 21 years, what is the half-life?
vagabundo [1.1K]

Half life formula

The number of unstable nuclei remaining after time t can be determined according to this equation:

N(t) = N(0) * 0.5^(t/T)

where:

N(t) is the remaining quantity of a substance after time t has elapsed.

N(0) is the initial quantity of this substance.

T is the half-life.

It is also possible to determine the remaining quantity of a substance using a few other parameters:

N(t) = N(0) * e^(-t/τ)

N(t) = N(0) * e^(-λt)

τ is the mean lifetime - the average amount of time a nucleus remains intact.

λ is the decay constant (rate of decay).

All three of the parameters characterizing a substance's radioactivity are related in the following way:

T = ln(2)/λ = ln(2)*τ

How to calculate the half life

Determine the initial amount of a substance. For example, N(0) = 2.5 kg.

Determine the final amount of a substance - for instance, N(t) = 2.1 kg.

Measure how long it took for that amount of material to decay. In our experiment, we observed that it took 5 minutes.

Input these values into our half life calculator. It will compute a result for you instantaneously - in this case, the half life is equal to 19.88 minutes.

If you are not certain that our calculator returned the correct result, you can always check it using the half life formula.

8 0
3 years ago
Which term describes the position of a gene on a chromosome?
Dima020 [189]

1: B

2:D

Those are the answers!

Hope this helps!

I am joyous to assist you anytime.

~Jarvis

8 0
3 years ago
What do the data suggest about the effects of cane toads on the predatory behavior of black snakes in areas where the toads have
Brrunno [24]

Answer: C. Black snakes will not prey on cane toads in areas where cane toads have been present for 40–60 years.

Explanation:

Cane toad secret a toxin called bufotoxin which is a defense mechanism against predators. These defense mechanism is capable of killing black snakes if they eat cane toads. Within a period of 40 to 60 years, the black snakes in these area will be aware of the presence of a toxin capable of killing them in cane toads and will not prey on them. This phenomenon is termed learned behavioral adaptation.

4 0
3 years ago
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