Biology; Chemistry; Physics: Post your doubts here!

[funky brat]

During pregnancy, where does mitosis occurs in the cells of embryo?
isn't it only in uterus wall? why in oviduct?

The zygote is not implanted in teh uterus, it is actually the blastocyst which is the ball of cells. It takes 5 days for the balstocyst to travel from oviduct to uterus.

 

[Laibaaa]

Can someone please explain the commercial uses of asexual reproduction in plants? Im really bad at that chapter and idk about the tubers and cutting and all that, please explain?

 

[princess Anu]

The zygote is not implanted in teh uterus, it is actually the blastocyst which is the ball of cells. It takes 5 days for the balstocyst to travel from oviduct to uterus.

but if the are referring to embryo doesn't it mean that now it has completed that phase :/

 

[princess Anu]

SEQUENCE
Right Atrium contract, Right ventricle contract, Tricuspid Valve closes, Semilunar Valve opens. Why isn't this correct

 

[funky brat]

but if the are referring to embryo doesn't it mean that now it has completed that phase :/

yeah, embryo is the stage next to the zygote.

 

[exploded diper]

Can someone please explain the commercial uses of asexual reproduction in plants? Im really bad at that chapter and idk about the tubers and cutting and all that, please explain?

its more about the comercila uses thn the production methods...

required characteristic ensured/no variation
no dangers of inbreeding/of introduction of undesirable traits
*cheap/large numbers of offspring/one parent needed
*relatively quick
*genetically identical

 

[exploded diper]

And i got u, yep u r rite but how can u show outward movement by drawing a line ?
I've confirmed that from my teacher..

thn can we make a curve frm the bottom....

 

[Laibaaa]

its more about the comercila uses thn the production methods...

required characteristic ensured/no variation
no dangers of inbreeding/of introduction of undesirable traits
*cheap/large numbers of offspring/one parent needed
*relatively quick
*genetically identical

Yeah I know that but how is it done? Like I heard some graft methods, cutting and all those methods, what are they? :|

 

[funky brat]

SEQUENCE
Right Atrium contract, Right ventricle contract, Tricuspid Valve closes, Semilunar Valve opens. Why isn't this correct

What both vavles together?
Right atrium, tricuspid valve, right ventricle, sumilunar valve, pulmonary arch.

 

[funky brat]

Yeah I know that but how is it done? Like I heard some graft methods, cutting and all those methods, what are they? :|

Like roses, lemons, cocount, they are grafted.
It's like a small piece is removed from the healthy plant in that the plant to be grown is inserted and tied with something. The plant tied obtains nutrients from the healthy plant.

 

[Laibaaa]

Like roses, lemons, cocount, they are grafted.
It's like a small piece is removed from the healthy plant in that the plant to be grown is inserted and tied with something. The plant tied obtains nutrients from the healthy plant.

Thankyouu. But do we have to go into the detail much? Cos Im bad at this chapter. :|

 

[Awesome12]

No, it's A of course.

I asked this question to the poster, to make her deduce the answer herself.

 

[funky brat]

Thankyouu. But do we have to go into the detail much? Cos Im bad at this chapter. :|

Read it like once.
You should know how a certain plant is grown by asexual repro. Only one maybe.

 

[Laibaaa]

Q) How is ovule converted into a seed?

 

[funky brat]

Q) How is ovule converted into a seed?

By fertilisaation, pollen grains lands on stigma, forms pollen tube, grows down the style, eneters the micropyle, nuclues fuses with the egg, gets fertlilised so ovule turns to be a seed.

 

[Suhaib]

thn can we make a curve frm the bottom....

Y r u not accepting the curve from Top, ok let me get this straight for U... forget the Q and listen me..
Q : By drawing a line show the movement of Your Thorax (chest), When U Inhale ( Try it by yourself ), it goes like upwards and outwards both ways ...
Ans : Drawing already shown to u.

 

[Suhaib]

SEQUENCE
Right Atrium contract, Right ventricle contract, Tricuspid Valve closes, Semilunar Valve opens. Why isn't this correct

Who said that it's incorrect ?? This sequence seems Right...

 

[Suhaib]

Yeah I know that but how is it done? Like I heard some graft methods, cutting and all those methods, what are they? :|

Grafting , cutting, etc are not included in Syllabus.

 

[Suhaib]

What both vavles together?
Right atrium, tricuspid valve, right ventricle, sumilunar valve, pulmonary arch.

Cant we explain both valves at the same time? i.e one is closing and other is opening ....

 

[funky brat]

Cant we explain both valves at the same time? i.e one is closing and other is opening ....

yeah, depends on the question, liek sometimes there are MCQs focusing on the exact order of events one by one, so I think then you write like this.