How do we inherit DNA Flashcards
DNA
Where is DNA located
The nucleus holds the genetic information (DNA)
How is DNA organised in the nucleus?
DNA is organised into gens that are found on chromosomes
DNA—> Genes—> Chromosomes
What is a gene?
Genes are segments of DNA that code for a particular protein
How many pairs of chromosomes do humans have?
Humans have 23 pairs of chromosomes, 46 in total
What does diploid mean?
Diploid is paired set of chromosomes in somatic cells
What is a somatic cell?
Somatic cells are cell in the body except sex cells
What are gametes?
Gametes are reproduction or sex cells (sperm/egg)
What does haploid mean?
Haploid are the possession of one copy of each chromosomes in the cell 46/2=23
What sex chromosomes do males and female have?
Females have 2* X chromosomes : XX
Males have X+Y chromosomes: XY
What is an Autosome?
An autosome is any chromosomes not involved in sex determination
What is a sex chromosome?
Sex chromosomes are the chromosomes that determine an individuals sex.