(a)++Chromosomes

(a) Chromosomes (Q 1-3) __ (1) Copy the diagram (& labels) near the top of page 189 ( Section 11.1 ). __



__(2) Find and insert at least one image (or YouTube (or other) video) to show the structure a chromosomes. __

Here is a Internet Site where they show structure of Chromosome more deeply: [|Structure of Chromosome]

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__(3) What is a karyotype? Show one and explain how we use it for humans __

karyotype is the number and appearance of chromosomes. It is also used for sets of chromosomes in one species or one living thing

People get one chromosome of each types from their parents. One from mom and one from dad. karyotype is a number and appearance of chromosomes under the light of microscope. The attention is paid on their length, position, patterns and differences between the sex chromosomes. In human, there are 22 pairs of autosomal chromosomes in our body and one pair of sex chromosomes.

Karyotype also describe the number of chromosomes and what they look like under a microscope.

 (This is a complete set of karyotype of human being.)

This person is male becuase he contains the chromosomes X and Y. Female has the last chromosomes as 2 Xs.