1.Linked Genes, X-linked inheritance, and Mutations Ch. 152. Genes are on Chromosomes • This is obvious to us, but it has only been known for a few decades 3. Chromosome…

1. Meiosis Organisms have tens of thousands of genes that determine individual traits. A chromosome can contain a thousand or more genes along its length. Diploid and haploid…

Slide 1 CHROMOSOME VARIATION Slide 2 VARIATION IN CHROMOSOME NUMBER Slide 3 Slide 4 Variations in Chromosome Number An organism or cell is euploid when it has one complete…

Cell Division Meiosis Cell Division Meiosis Abnormal Meiosis Cell Division Meiosis Abnormal Meiosis nondisjunction occurs when two homologous chromosomes fail to separate…

Meiosis & Sexual Reproduction Remember that 1 chromosome is made when 2 chromatids join at the centromere. These 2 chromatids are EXACT copies of each other Every human…

Chromosomal Basis of Inheritance Errors and Exceptions in Chromosomal Inheritance 1. Alterations of chromosome number or structure cause some genetic disorders 2. The phenotypic…

Genetic Disorders During Meiosis Karyotypes Genetic Technologies Lesson 3 Learning goals Understand the errors that can occur during meiosis and identify some disorders using…

REPRODUCATION WHY ARE THEY NECESSARY? SPECIALIZED SEX CELLS Why do diploid organisms need to have specialized sex cells? Sex cells (gametes: sperm or egg) allow traits to…

Unit 4, Day 5 Unit 4, Day 4 Genetics & Human Development Thu, Jan 24th (Block, 115 min) Fri, Jan 25th (Block, 85 min) Homework Due Today (0 min) - Stamp Human Development…

REPRODUCATION WHY ARE THEY NECESSARY? SPECIALIZED SEX CELLS Why do diploid organisms need to have specialized sex cells? Sex cells (gametes: sperm or egg) allow traits to…