Biology; Chemistry; Physics: Post your doubts here!

[Faizan Muhammmad]

Was this an MCQ? Who said it's a 10 mark question? -.-

it was an MCQ and for record I repeat it

How can malaria spread from an infected person to another person?
-Sneezing
-Mosquito Bite
-Blood Transfusion
-Drinking Contaminated Water

 

[Awesome12]

Can we please leave this freakin MCQ, and move on with life . What will you achieve if you prove the other wrong. Yeah a sense of self-esteem, but common...

 

[funky brat]

it was an MCQ and for record I repeat it

How can malaria spread from an infected person to another person?
-Sneezing
-Mosquito Bite
-Blood Transfusion
-Drinking Contaminated Water

I would never choose blood transfusion over malaria bite, though.

 

[funky brat]

Can we please leave this freakin MCQ, and move on with life . What will you achieve if you prove the other wrong. Yeah a sense of self-esteem, but common...

It isn't wrong.

 

[Faizan Muhammmad]

Faizan Muhammmad

Okay, let me settle this once and for all.

WE ARE HUMANS, AND THIS IS A MULTIPLE CHOICE QUESTION. NOTHING TO GET ALL WORKED UP ABOUT.
TRY TO UNDERSTAND WHAT I AM SAYING, OKAY?

Just picture the entire world. You. Sitting. or whatever. And the entire world around you.
There are continents. There is a whole system. People giving cie's, working hard, doing what they can to succeed.

But during this, conflicts arise. Now the only possible thing is to resolve them.

So here i go.

Malaria is a disease. The entire world is suffering from it. Africans are dying every day due to Malaria. There is no medical care there. Kids, adults, they're all dying.
Why? Because a stupid disease called MALARIA is there, and mosquitoes bite and stuff, and transfer this anopheles thing you say.

Now coming to the question, it says:

Q. How can Malaria be transferred from an infected person to a healthy person?

Those are the exact words.
Now read them carefully.

BLOOD TRANSFUSION. MOSQUITO BITES.

First of all, both are possible. Both can lead to to Malaria being spread from infected to healthy person.

But even though i hate BIOLOGY, and suck at it, this subject is about reality. It's about the biological world we're living in.
And here in this world, MOSQUITO bites are the cause of malaria.

To answer this question, you had to keep in mind the current state of technology and the life we're living in.

Today, no one transfuses blood without protection. In the 16th century there was no proper equipment, they used to transfuse blood without knowing and stuff, there were no blood tests, and malaria used to be spread.

BUT THIS IS THE 21ST century. Today there are advancements, and new technology in medicine. The world has evolved. We are in a new world.

Today, NO ONE can get a blood transfusion without having their blood tested first. If they have got malaria, they can't donate blood simple.

So, now this question was about reality.

Two people. One infected, one healthy.

They live together, sleep together.

Now, how can malaria be transferred between them? [Keeping in mind the current situation of this world, the existence of mosquitoes, and life as we know it]

If The other person gets malaria, then the doctor will say straight away that the reason for getting malaria was being bitten my a mosquito which had already bitten that persons partner.

Now if they had been freaks, they would have transfused blood. But that is highly unlikely, and pointless, and impossible in todays world. There is no reason to do that themselves.

So i conclude, YES. It is possible to get malaria due to blood transfusion. But This question was about this century, this life, and about your biology book, which has an example of a mosquito in it. So the answer was supposed to be MOSQUITO BITES.

And CIE never said it can't be spread through TRANSFUSION. They only asked a general question, about how and what would be the cause of malaria being spread from infected to healthy, and mosquito bite is the only logical explanation!

I would never chose blood transfusion over malaria bite, though.

 

[Awesome12]

Alright, if we cross two breeds (lets say cattle), will the resulting gene of the offspring be a result of mutation, or not?
And also, how often does mutation occur in evolution, like does it occur for every offspring produced

 

[Dark Destination]

I would never chose blood transfusion over malaria bite, though.

Lol, of course. No one would.

But Faizan Muhammmad you are right to some extent. This MCQ has a technical problem with its wording, or maybe you're not quoting the exact question.

Malaria can be spread from infected to healthy person by transfusion, you're right. And A can also be the right answer, but sometimes we need to keep in mind, LOGIC. You can Debate with CIE, and even prove them wrong. But they won't agree, and will stick to their B answer.

So no use fighting with CIE, dude. we just have to accept this.

 

[Faizan Muhammmad]

OK another one of the same paper

there was a diagram of skin

it asked which structure is not directly affected by temperature change
-nerve ending
-cappilary
-sebaceus gland
-hair muscle

 

[Awesome12]

Lol, of course. No one would.

But Faizan Muhammmad you are right to some extent. This MCQ has a technical problem with its wording, or maybe you're not quoting the exact question.

Malaria can be spread from infected to healthy person by transfusion, you're right. And A can also be the right answer, but sometimes we need to keep in mind, LOGIC. You can Debate with CIE, and even prove them wrong. But they won't agree, and will stick to their B answer.

So no use fighting with CIE, dude. we just have to accept this.

no the question is right. I also got the same question, and chose the blood transfusion one

 

[asadalam]

Alright, if we cross two breeds (lets say cattle), will the resulting gene of the offspring be a result of mutation, or not?
And also, how often does mutation occur in evolution, like does it occur for every offspring produced

Mutation is a spontaneous change which has no ratio or probability so it can happen twice in one generation and not even once in 5.But certain factors increase the risk of mutation.These are mutagens like ionizing radiation and mustard gas.Also inbreeding has a relatively high rate of mutation so if they are siblings then the resulting offspring would have a higher risk having mutations

 

[Awesome12]

Mutation is a spontaneous change which has no ratio or probability so it can happen twice in one generation and not even once in 5.But certain factors increase the risk of mutation.These are mutagens like ionizing radiation and mustard gas.Also inbreeding has a relatively high rate of mutation so if they are siblings then the resulting offspring would have a higher risk having mutations

Thanks.

 

[funky brat]

OK another one of the same paper

there was a diagram of skin

it asked which structure is not directly affected by temperature change
-nerve ending
-cappilary
-sebaceus gland
-hair muscle

This is C, sebaceous glands. Right?

 

[exploded diper]

OK another one of the same paper

there was a diagram of skin

it asked which structure is not directly affected by temperature change
-nerve ending
-cappilary
-sebaceus gland
-hair muscle

Sabaceous glands cuz they secrete sebum to lubricate hair and are not affected by temperature

 

[Dark Destination]

Sabaceous glands cuz they secrete sebum to lubricate hair and are not affected by temperature

Okay, Chemistry-master.

 

[Faizan Muhammmad]

This is C, sebaceous glands. Right?

Sabaceous glands cuz they secrete sebum to lubricate hair and are not affected by temperature

we are all so like minded
nope it isnt
it was capillary and it makes some sense too

gland increase the rate when its hot and form a layer of oil to prevent large amount of water loss
blood flow through capillary is increase but cappilary doesnt change nor carry out any action itself

 

[Faizan Muhammmad]

though there is something known as sphincters in cappilaries I think but we were supposed to ignore them probably

 

[funky brat]

Alright, if we cross two breeds (lets say cattle), will the resulting gene of the offspring be a result of mutation, or not?
And also, how often does mutation occur in evolution, like does it occur for every offspring produced

No, this won't be mutation. The offspring is the result of the traits of both the parent cattles but not mutation. No mutation are spontaneous. Actually you are confusing mutation and evolution. Both are completely different things. Where as evolution is a slow process and it occurs according to the environmenal changes for better adapatability of the specie. Mutation can occur at anytime and it is mostly not beneficial to the organism.

 

[exploded diper]

Ohhhhhhh....cul.....

we are all so like minded
nope it isnt
it was capillary and it makes some sense too

gland increase the rate when its hot and form a layer of oil to prevent large amount of water loss
blood flow through capillary is increase but cappilary doesnt change nor carry out any action itself

 

[Faizan Muhammmad]

No, this won't be mutation. The offspring is the result of the traits of both the parent cattles but not mutation. No mutation are spontaneous. Actually you are confusing mutation and evolution. Both are completely different things. Where as evolution is a slow process and it occurs according to the environmenal changes for better adapatability of the specie. Mutation can occur at anytime and it is mostly not beneficial to the organism.

Well using Dark Destination s logic
since evolution is not possible according to Islam and we are all muslims
mutation is the only thing

 

[funky brat]

Well using Dark Destination s logic
since evolution is not possible according to Islam and we are all muslims
mutation is the only thing

THIS IS NOT MUTATION.