Determining Sex.

Slides:



Advertisements
Similar presentations
Parent 1Parent 2Offspring 1Offspring 2 Offspring 1 becomes Parent 1 for next generation This is what your data screen looks.
Advertisements

Human karyotype How many pairs of chromosomes are there?
8.3. Starter How many chromosome pairs do humans have? 23 pairs What are the sex chromosomes and how is it determined if a person is male or female? X.
3.3 Review PBS.
Two copies of each autosomal gene affect phenotype.
Sex Linked Traits Humans have 23 pairs of chromosomes.
Codominance and Sex-linked traits. CODOMINANCE 2 alleles are dominant and both are expressed Most common examples are blood type and flower color.
Sex Cells Gametes (germ cells) Eggs and Sperm Somatic Cells All other cells Questions: 1, 2, 3, 4.
7.1 Chromosomes and Phenotype KEY CONCEPT The chromosomes on which genes are located can affect the expression of traits.
Sex Chromosomes.
7.1 Chromosomes and Phenotype KEY CONCEPT The chromosomes on which genes are located can affect the expression of traits.
Mutations can be caused in 3 ways, one way there can be too many codons, second they can have too little, and last they can be out of order. These result.
Human Heredity Ch 14. Human Chromosomes Karyotype – picture of chromosomes grouped together in pairs 23 pairs (46 total) Two are sex chromosomes (pair.
Genetics: Karyotypes and Sex-linked traits March , 2010.
You have body cells and gametes.
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.
Thursday 12/3/15 Learning Goals:
What is sex linkage? Males have the genotype XY whereas females are XX. Create a genetic diagram to show the possible genotypes produced. What are the.
Sex Cells and Inheritance
Chapter 12.5 Sex Determination in Humans AP Biology Fall 2010.
Genes that are located on the sex chromosomes are sex-linked genes. In mammals, individuals with two X chromosomes, an XX genotype, are females. Individuals.
Monday Dec. 10 Page 273 Answer question # 1. Gametes Sex Cells X X XX Xy Body Cells Baby Girl.
CHAPTER 12 SEX-LINKED TRAITS
Genetics Word Problems
Simple inheritance patterns
Sex Linked Traits Humans have 23 pairs of chromosomes.
Objectives Students will be able to: Relate dominant-recessive patterns of inheritance in autosomal chromosomes to genetic disorders. Describe patterns.
Two copies of each autosomal gene affect phenotype.
Sex Determination Chromosome # 23 are sex chromosomes
Genetics: Karyotypes and X-linked traits
Initial activity: What do you notice?
Sex-Linked Traits.
Sex-Linked Traits.
Incomplete Dominance, Codominance
Inheritance Lesson 3.
Two copies of each autosomal gene affect phenotype.
Sex Chromosomes.
Sex Linked Traits Humans have 23 pairs of chromosomes.
Sex Linked Genes.
X-Linked Inheritance (Sex Linked)
Tt Tt Tt Tt The Punnet Square Mendel's pea plants Tall = TT T T
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
What gender is XX female.
Sex Cells and Inheritance
Chapter 14-1 Human Heredity
3.3 Review PBS.
Meiosis.
Genetics Word Problems
Male genotype _______________________
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
S3: HEREDITY E1: SEX-LINKED TRAITS
Sex Linked Traits Humans have 23 pairs of chromosomes.
Two copies of each autosomal gene affect phenotype.
Sex Linked Traits Humans have 23 pairs of chromosomes.
STATION 1 How many males are affected? How many females are affected?
QOD #1 12/04/14 What happens to Cells when they get too big? Why?
Sex-Linked Inheritance
How is gender determined?
Two copies of each autosomal gene affect phenotype.
Sex-Linked Traits.
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
Chromosomal Basis of Inheritance
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
Presentation transcript:

Determining Sex

Determining Sex http://www.bbc.co.uk/schools/gcsebitesize/science/ocr_gateway_pre_2011/ourselves/7_who_am_i3.shtml http://www.bbc.co.uk/scotland/learning/bitesize/standard/biology/inheritance/what_is_inheritance_rev7.shtml

X Y X X Determining Sex or or Phenotype: Male Female Genotype: XY x XX Genotype of Gametes: x X Y X X or or

X Y X X X X X Y Determining Sex or or Genotype of Gametes: x Genotype of Offspring: X Y X X or or X X X Y

Determining Sex http://www.brainpop.com/health/geneticsgrowthanddevelopment/genderdetermination/