Human Chromosome and Karyotyping

Slides:

Advertisements

Similar presentations

The Cell Cycle These notes are an introduction to The Cell Cycle Unit.

Advertisements

Why we look somewhat like our parents, but not exactly.

Zoo-352 Principles of genetics Lecture 3 The cell cycle and its checkpoints.

Karyotypes and genetic disorders Objective: to describe and explain how karyotypes are used to detect genetic disorders.

Karyotypes and Karyotyping

Human Chromosomes. How many chromosomes do humans have? 46 In 23 pairs – one in each pair from mom, one from dad Matched pair = homologous chromosomes.

1copyright cmassengale. Aorganized picture arranged in pairs by size An organized picture of the chromosomes of a human arranged in pairs by size from.

Genetics and Inheritance Year 10 Biology Part 1: Genes & Chromosomes.

KARYOTYPING What do your chromosomes look like?. Karyotype Cell treated with chemical to stop in metaphase Chromosomes stained Picture taken Enlarged.

Genes and Chromosomes. Gene Segment of DNA whose sequence codes for a specific product – Examples: physical trait, RNA, enzymes etc. Genes are located.

A Chromosome Study Please pick up 1 set of chromosomes marked “normal” and 1 set of abnormal chromosomes labeled A B C or D, in addition to the lab handout.

Lesson Overview Lesson Overview Human Chromosomes Objectives 14.1 Human Chromosomes - -Identify the types of human chromosomes in a karotype. -Describe.

Making and reading karyotypes

What is a homologous chromosome?

Karyotype Notes. A karyotype is a “ picture ” of a person ’ s chromosomes. Each person has 46 chromosomes, in 23 pairs. Pairs 1-22 are called Autosomes.

Introduction to DNA. Question: From your on-line computer activity, what do you know about the structure of DNA?

4.1-Cell Division & Genetic Material cont’d: Chromosomes and Karyotypes SBI3U.

PEDIGREE CHARTS A family history of a genetic condition © 2007 Paul Billiet ODWSODWS.

A disease that prevents the blood from clotting properly. It is a genetic disorder, meaning it’s the result of a change in genes that were inherited.

Chromosomes & Karyotyping. As you get started: Prepare a spot in your notebook for this “Karyotyping Activity” – As you look through the first few slides,

Human Karyotype New Journal Entry – “Human Karyotype” 1. How is DNA arranged in our cells? 2. How many chromosomes do humans have?

Chromosomes & Karyotyping. What is genetic counseling? Visit the web-site: netic_counseling.html#

A Chromosome Study.

Karyotypes and DNA Fingerprinting

Exploration Lab Karyotyping.

Karyotypes Objective: Learn and Identify characteristics of Karyotypes

KEY CONCEPT A combination of methods is used to study human genetics.

Inquiry into Genetics # 1 Trait Alleles Genotype Phenotype Hazel Green

KEY CONCEPT A combination of methods is used to study human genetics.

Chromosomes & Karyotyping

After writing your 4 lines, share with the person sitting next to you.

KEY CONCEPT A combination of methods is used to study human genetics.

Karyotypes and Karyotyping

What do your chromosomes look like?

Patterns of Inheritance

BIOLOGY12 Meiosis Terminology.

How our genes are organized

Determining Sex Sex Chromosomes determine sex Males have an X and a Y

How do scientists identify chromosomes?

KEY CONCEPT A combination of methods is used to study human genetics.

Cellular Reproduction

Karyotype Activity.

CHROMOSOMES As a eukaryotic cell prepares to divide the DNA

DNA and Chromosomes.

Unit 3, Part 2 (Inheritance Patterns)

KARYOTYPES A diagram showing the arrangement of chromosomes aligned with their homologous chromosome Allows doctors to determine if an unborn child will.

Some of the “C” words.

DNA Review DNA – genetic material

Chapter 14-1 Human Heredity

An Organized Picture of Your Chromosomes!!

Chromosome Mutations.

CHAPTER 8 Chromosomes pp

Genetics Basics (Heredity)

Lecture #22 Honors Biology Ms. Day

Human Heredity- Karyotyping and Geneics Disoders

What Can Our Chromosomes Tell Us?

Genetic Disorders.

Reproduction 1. Introduction

8.3 Human Genetics and Mutations

Cell Reproduction.

KEY CONCEPT A combination of methods is used to study human genetics.

KEY CONCEPT A combination of methods is used to study human genetics.

KEY CONCEPT A combination of methods is used to study human genetics.

CHROMOSOMES As a eukaryotic cell prepares to divide the DNA

Estimating the Time Needed for Mitosis

KEY CONCEPT A combination of methods is used to study human genetics.

Presentation transcript:

Human Chromosome and Karyotyping Biology 12

Human Chromosomes: Humans have 23 pairs of chromosomes 22 pairs are called autosomes (they are the same in males and females

Sex Chromosomes: One pair of chromosomes differ in males and females, Called sex chromosomes, there are two types: X chromosome (similar to all other chromosomes) Y chromosome (shorter and hook shape)

Females: Have two x chromosomes (one from mother and one from father)

Males: Have one x chromosomes (from mother) and one y (from father)

Karyotyping: A karyotype is an organized profile of a person's chromosomes. Chromosomes are arranged and numbered by size, from largest to smallest. This helps scientists quickly identify chromosomal alterations that may result in a genetic disorder. To make a karyotype, scientists isolate DNA and then take a picture of the chromosomes. Then they cut them out and match them up using size, banding pattern and centromere position as guides.

Karyotyping: the process

Joke of the day:

To do: Worksheet: Chromosomes and Genes Page 125 question 12 a, b