Science Revision - Coggle Diagram
sex cells / gametes are produced.
meiosis produces four non - identical daughter cells, each with only half the number of chromosomes (23)
Double division - haploid
this is the process by which new body cells are produced for.
Mitosis - single division
result in 2 identical daughter cells.
ASEXUAL / CLONING
Asexual & Sexual Reproduction
Asexual: no new varieties.
Asexually and Sexually reproduce.
condition under which plants grow can change its look, which means it is genetically identical.
23 pairs of chromosomes - humans
pairs are called homologous - matching.
a cell that has pairs - diploid
each chromosomes is a very long molecule of tightly coiled DNA.
4 types of bases and they are identified by there initials.
The DNA molecule looks like a twisted ladder consisting of two strands.
this spiral shape is called DOUBLE HELIX
base pairs hold the two strands of DNA helix together.
it is the sequence of these base along a DNA molecule that forms the genetic code.
humans have 46 chromosomes, 23 from their mother and 23 from their father.
NEED TO KNOW
Homozygous - the same - the alleles are the same
Heterozygous - different - alleles are different.