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Karo-lina-s [1.5K]
3 years ago
9

What is the purpose of an antibody? Group of answer choices to stick to an antigen, alerting your body of the presence of a fore

ign substance to send chemical messages to and from the brain and body to clot blood when the body has a cut our wound to carry oxygen to body cells and tissues
Biology
1 answer:
Alexandra [31]3 years ago
5 0

Answer: Antibodies are proteins that are found in the body on the surface of red blood cells and in the blood plasma ,they are very sensitive to foreign bodies and bad viruses and bacteria,when they notice the presence of anything that poses harm or a threat to the body system,they track it down and fight/destroy it.

Antibodies also play crucial role in hemostasis(stoppage of bleeding) in the sense that when the body is wounded or when someone gets a cut antibodies that are found in the plasma and some substances found in the platelets are released to play a role in sending signal to the blood clotting factors in the blood to be released to arrest the bleeding and prevent the person from bleeding out their entire blood.

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The _______ modifies vesicles for export or use within the cell. endoplasmic reticulum mitochondria Golgi apparatus nucleus
Anastasy [175]
I believe the answer is Golgi Apparatus.
8 0
3 years ago
Black fur in mice (
Tpy6a [65]
The answer is D) 1/2.

Let's imagine that two genes of the genotype can be analysed separately.

Black fur is determined by dominant allele B. In this case, parents Bb and BB will give offspring with only brown fur:
Parents:          Bb     x     BB 
Offspring:     BB   BB   Bb   Bb
Both homozygous (BB) and heterozygous (Bb) offspring will have black fur.

On the other hand, long tails are determined by recessive allele t. Parents Tt and tt will have 50% offspring with short tail and 50% offspring with long tail:
Parents:         Tt         x       tt
Offspring:    Tt      Tt        tt      tt
Heterozygous offspring (Tt) will have short tail, and homozygous offspring (tt) will have a long tail.

So, the offspring will definitely have black fur and will not affect the fraction of the offspring with black fur and long tails from the cross of <span>BbTt × BBtt. But, </span>there will be 2 out of 4 offspring with short tails which is 50% or 1/2. 
5 0
3 years ago
PLZ ANSWER!!! Water covers the majority of Earth's surface and occurs in various forms.
just olya [345]

Answer:

3,2,4,1

Explanation:

7 0
3 years ago
Read 2 more answers
Si una persona sana que no tiene mutaciones en el cromosoma 4 decide tener hijos con una persona heterocigota (A/a) que padece d
inessss [21]

Answer and Explanation:

<u>Cruza</u>: persona sana sin mutaciones con persona portadora

El parental sano aporta alelos normales del gen a la descendencia

El parental portador aporta un alelo normal y un alelo alterado. Tiene el 50% de probabilidad de transmitir la enfermedad a la progenie.

Parental)    AA   x   Aa

Gametas) A    A    A   a

Cuadro de Punnet)   A       A

                           A   AA    AA

                           a    Aa    Aa

F1) 2/4 = 1/2 = 50% de la progenie seran individuos sanos AA

    2/4 = 1/2 = 50% de la progenie seran individuos portadores Aa

Como uno de los progenitores es portador, cada individuo tiene un 50% de posibilidades heredar el gen alterado.

3 0
2 years ago
When did the human population begin to grow at a faster rate than at any other time in history
gavmur [86]

It started in 1798, to the 1800. This period is when the human population began to grow at a faster rate then any other time in history.

>Got my answer right on gradpoint<

The answer is 300 years ago.

The answer choices were.

A 300 years ago

B 8,000 years ago

C 20,000 years ago

D 1,000 years ago

8 0
3 years ago
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