11.03.2017 Views

DR Medhat MRCP

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

• Definitions:<br />

Term<br />

Definition<br />

Gametes<br />

Gene<br />

Genome<br />

Locus<br />

Chromosome<br />

Alleles<br />

Codon<br />

Diploid<br />

Ova and sperm cells<br />

A region of DNA that encodes protein.<br />

Complete set of gene of an organism and the intervening DNA<br />

sequence.<br />

Site of gene on a chromosome.<br />

Self-replicating genetic structure of cells containing the cellular DNA<br />

that bears in its nucleotide sequence the linear array of genes<br />

Chromosomes are normally found in pairs; human beings typically<br />

have 23 pairs of chromosomes (22 autosome + 1 sex chromosome).<br />

Alternative form of a gene found at the same locus on a chromosome;<br />

a single allele for each locus is inherited separately from each parent.<br />

Sequence of amino acids<br />

The number of chromosomes in somatic cell i.e 46 chromosome<br />

Haploid The number of chromosomes in gamete cell (sperm or ovum) i.e 23<br />

Karyotype<br />

Autosome<br />

Number and appearance of chromosomes in the nucleus, in human<br />

there are 44 autosome + 2 sex chromosomes.<br />

Any chromosome other than sex chromosome (22 pairs)<br />

34

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!