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4 years ago

Each person began as a zygote. Explain why each person has the same genetic makeup as the zygote he or she developed from.

1 answer:

5 0

A zygote contains 46 chromosomes (23 pairs of homologous chromosome), the genetic information that is reproduced in the formation of the human body. The genetic makeup remains the same, it only multiplies.

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Why are diploid cell cultures preferred over continuous cell cultures

musickatia [10]

Diploid cells are cells that are normally generated from mitosis which came from humans, animals and plants. Unlike continuous cell cultures, they are capable or functioning normally and is subject to apoptosis which is highly unlikable to continuous cell cultures.

4 0

3 years ago

semi anThe bones of a prehistoric man found in the desert of New Mexico contain approximately 5% of the original amount of carbo

Kitty [74]

Answer:

24555 years

Explanation:

Data provided in the question:

Half life of carbon 14 = 5700 years

carbon present in the dead man = 5% of the original amount of carbon 14

Now,

let the initial Amount of carbon be 'A'

Therefore,

after half life

Amount of carbon = $\frac{A}{2}$

Thus,

$\frac{A}{2}$ = $Ae^{kt}$

here,

k is the decay constant

t is the time = 5700 years

therefore,

1 = $2e^{k\times5700}$

0.5 = $e^{k\times5700}$

taking natural log both the sides

-0.69314 = 5700k

k = - 0.000122

therefore,

for dead man Amount of carbon = 5% of A = 0.05A

thus,

0.05A = $Ae^{( - 0.000122)t}$

0.05 = $e^{( - 0.000122)t}$

taking natural log both the sides

we get

-2.995 = - 0.000122 × t

t = 24555.18 ≈ 24555 years

7 0

3 years ago

Escribe cuatro caracteristicas de los mamíferos que los diferencia de otro tipo de vertebrados

Dominik [7]

Producción de leche, cabello, temperatura corporal constante y sistemas circulatorios y respiratorios altamente desarrollados.

4 0

3 years ago

Each night as Leo gets in bed, he has these intrusive, unwanted thoughts that he left the stove on or the door unlocked. So, he

Alexxx [7]

Answer:

Leo is suffering from a condition known as obsessive-compulsive disorder.

Explanation:

The obsessive-compulsive disorder refers to an anxiety problem characterized by intrusive, recurrent and persistent thoughts that might produce worry, concern, and repetitive actions or behavior, known as compulsions. These compulsions are directed to reduce the associated anxiety and to avoid that something bad occurs.

A pattern of thoughts and irrational fears -obsessions- that make the patient behave with repetitive actions -compulsions-, characterize this disorder.

These obsessions and compulsions interfere in daily activities and are the cause of anxiety and distress.

This disorder is expressed by different symptoms, such as obsessive cleaning, washing, ordering, accumulating, among others. The exposed example is the case of a verifying person who needs to verify everything to avoid a catastrophe. They need to check that doors are closed, or electro domestics are in their off mode.

7 0

4 years ago

PLEASE HELP!!!! Explain how in glycolysis that the splitting of the glucose molecule results in ATP but there is only a net gain

Svetach [21]

There is only a net gain of 2 ATP because it creates 4 in total but costs 2 to perform. This process breaks down glucose into pyruvate in the cytoplasm.

4 0

3 years ago