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inheritance variation and evolution (reproduction (Inhumans each gamete…
inheritance variation and evolution
meisosis
You get for gametes Each with only a single set of chromosomes in it each of the gametes is genetically different from the other because the chromosomes all get shuffled up during meant mail each with only a single set of chromosomes in it each of the gametes is genetically different from the other because their chromosomes all get shuffled up during meiosis and each gamete only get half of them at random
As the embryo develops the cells then start to differentiate into the different types of specialist excels they make up a whole organism
Mitosis Repeat many times to produce lots of new cells in an embryo
After two game mate have you string factorisation the resulting you so divided by mitosis to make a copy of itself
x and y chromosomes
Of these is 22 on matched pairs from answers that just control characteristics
The 23rd pair are labelled XX or XY
That are 23 pairs of chromosomes in every human body Cell
The other two chromosomes that decide your sex whether you turn out male or female
DNA
DNA is found in the nucleus of animal and plant cells in real long structures called chromosomes
So it’s what in your DNA that determines what inheritance characteristics you have
From as it is normally come in pairs
It contains coded information basically all the instructions to put an organism together and make it work
DNA and a polymer is made up from two strands go together in the shape of a double helix
DNA stands for deoxyribonucleic acid it’s the chemicals that all of the genetic material in a cell is made up from
reproduction
Inhumans each gamete contains 23 chromosomes half the number of chromosomes in a normal cell
The egg from the mother and the sperm cell from the father of use together photolysed to form a cell with a full number of common signs half from the father and half from the mother
Inspection of the production a mother and father produce gametes by meitosis
This is why the offspring inherent speeches from both parents it receives a mixture of presents from its mum and from its dad
Sexual production is where genetic information from two organisms a father and a mother is combined to produce of spray which Ate genitacly different to either parent
The mixture of genetic information produces variation in the offspring
Flowering plants can reproduce in this way to they also have exist but the version of sperm is known as a pollen