Dna Flashcards
What is dna contained in
Chromosomes
Where is Dna found
In the nucleus
What’s a gene
A unit of inheritance
Different forms of the same gene are called what
Alleles
Genetic disorders are
Inherited genes from your perents
The genetic information is called its
Genome
In meiosis …………………and ………………………. gametes Are produced
Male and female gametes
In meiosis …….. chromosomes Come from each parent
23 chromosomes
In fertilisation the ……………. And the egg join to form a ………….
Sperm
Zygote
Mitosis produces
2 new cells identical to each other and to the parent
Mitosis occurs when
More cells are needed
Mitosis and meiosis are
Two ways cells are produced
In meiosis cells are
Split to make new cells with half the usual chromosomes to produce gametes for reproduction
In the growth part of the cell cycle ………… Increases inside the cell
Organelles
In meiosis
The chromosomes are copied
The cell divides twice forming 4 gametes
