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Give 2 example of nucleic acid
DNA and RNA
What does DNA stands for?
Deoxy Ribo Nucleic Acid
What does RNA stands for?
Riboxy Nucleic Acid
What are the 3 that’s inside the nucleus?
Nucleic acid , chromosomes and DNA
What happens to DNA when it has been crumble?
It becomes chromosomes
What are the 4 words that is under DNA?
ATCG
How much are the no of chromosomes in human?
46
How are the chromosomes occurs? ( in what form? )
In pairs ( 23 pairs )
It combined during fertiliser
The 23 pairs of chromosomes
In simple words, What is fertilization?
Fusion(pertemuan)
What are sperm and egg called?
Sex cell
When sperm mix with egg . What do they become?
Zygote
Is somatic cell a normal cell?
Yes its a normal cell
How many chromosomes are they in somatic cell?
46
What is (F)ertilisation?
Its a (f)usion of male and female gamate(sex cell) to form zygote
Give 2 example of gamate
Sperm cell and egg cell
What is gamate?
A sex cell
What happen if we (human) have high chromosomes than other human?
It will effect us , for example downsyndrome( having 47 chromosomes )
What happen if we (human) have lower chromosomes from other human?
It is not normal
How to identify if the baby(offspring) is a male or female?
Look at the 23rd of the chromosomes
Identify this picture ( female or male )
Male
Identify this picture ( female or male )
Female
How to know if the baby ( offspring ) is downsyndrome or not?
Look at the 21st of the chromosomes
What is gene? ( in a simple way to defined it )
Recepi of our body
It is a short segments or DNA
Gene
“Cell beranak banyak” which is called?
Nuclear division
When sperm mix with egg it combines and produce a cell , explain further
Then it divides into more cells which is called nuclear division
In a short term , What is nuclear division?
Nuclear divides which is to produce new cell
Nuclear division divided by 2 which is?
Mitosis and meiosis
In another word , What is meiosis?
Reduction division
What is mitosis?
The new cell that it produces is still the same , 46(ori) to 46
Mitosis divided in 4 . What is the mnemonics to remember it?
RRag
What is the 4 things that’s under mi(t)osis?
Grow(t)h , replacement , repair , asexual , reprodution
What is meiosis?
The new cell will be half , 46(ori) to 23
What are testes and ovary called ?
Gonads
It has to do with reproduction division , gonads(testes/ovary) and gametes(sex cell;sperm cell , egg cell)
Meiosis
Which nuclear division does halving which means 46(ori) to 23?
Meiosis
It is a cell which contain number of chromosomes which is 46
Somatic cell
What is the mnemonics for somatic cell?
Diploid
“Diploid” is a mnemonics for somatic cell. What does it stands for?
(D)ouble (LO)-symb(ol):2n=2×23
It contains single sex of chromosomes which is (23)
Sex cell
“Haploid” is a mnemonics for sex cell which stands for?
(H)alf and (ol)-symb(ol): n
What does “zef” stands for?
Zygote , embryo , fetus
It changes from regular cells to spesialised cell
Stem cell
It is sometimes were put on drinks and skin care product
Stem cell
Where can we found stem cell?
In the placenta
Identify the journey of stem cell’ placement
When sperm + egg it becomes to gamates then to zygote then to embryo and it ends up being placenta
What is the advantage of stem cell?
Good for skin and it helps with many kinds of sickness
What happen to ovary after fertilization?
It becomes a fruit
What happen to ovuler after fertilization?
It becomes into seed
In plant , what parts of flower/plant occurs fertilization?
Ovule
Flower has 2 types which is…
Female and male
“SSOO” is a mnemonics for flower in female . What does it stands for?
Stigma , Styles , ovary and ovule
Describe from top to bottom of female in flowers
From enzyme at the top to stigma to styles to ovary and ovule through pollen tube to ends to female gamates
What is fertilization?
After female gamates meet with male gamates it is called fertilization
What is stigma,style,ovary and ovule called?
Pistil/carpel
What is ovule?
Seed
What is ovary?
Fruit
“AF” is a mnemonics for male flower . What does it stands for?
Anther and filamen
Anther and filamen called….
Stamen
Whats inside the pollen grain of male flower?
Male gamete
List 4 process that happen during plants
Pollination,fertilization,dispersal and germination
Whats the mnemonics to remember the process that happen during plants?
“Perfect Dog”
“Perfect Dog” is the mnemonics to remember the process that happen during plants . What does it stands for?
(P)ollination , (F)ertilization , (D)ispersal and (G)ermination
What’s pollination?
The transfer of pollen grain ( male gamates ) from anther ( male ) to sigma ( female )
Whats dispersal?
Spreading of seed
Whats the germination?
The development of seed into young plants seed
It have energy and the power house of cells
Mitochondria
