explain this pedigree
DESCRIPTION
Please Take Out The Following: Pencil Science Journal: Notes Portion Chapter 8 Homework Packet *If you have not taken the Chapter 8 Quiz from yesterday, SEE ME NOW !. Explain this pedigree. In sex-linked traits only females can be carriers. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/1.jpg)
Please Take Out The Following:PencilScience Journal: Notes PortionChapter 8 Homework Packet*If you have not taken the Chapter 8 Quiz from yesterday, SEE ME NOW!
![Page 2: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/2.jpg)
Explain this pedigree
![Page 3: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/3.jpg)
In sex-linked traits only females can be carriers.
![Page 4: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/4.jpg)
What disease do you think is displayed from this pedigree?
![Page 5: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/5.jpg)
![Page 6: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/6.jpg)
Core & Honors Vocabulary
What is an autosomal trait?
![Page 7: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/7.jpg)
Answer
Autosomal: Pertaining to a chromosome that is not a sex chromosome.
People normally have 22 pairs of autosomes (44 autosomes) in each cell together with two sex chromosomes (X and Y in the male and XX in the female).
![Page 8: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/8.jpg)
Core & Honors VocabularyBased on the pedigree below, is the disease sex
linked (X-Linked), or autosomal? Why?
![Page 9: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/9.jpg)
Answer
![Page 10: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/10.jpg)
Core & Honors Vocabulary
What best describes Huntington’s Disease?
A) Sex-Linked (X-Linked) Dominant
B) Autosomal Recessive
C) Sex-Linked (X-Linked) Recessive
D) Autosomal Dominant
![Page 11: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/11.jpg)
Answer
HUNTINGTON’S DISEASE – A genetic disorder that is caused by an autosomal dominant allele. Every one who inherits the allele develops Huntington’s disease and has a 50% chance of passing it on to offspring. Symptoms do not develop until a person is over 30 (late onset). Death is caused by the gradual breakdown of cells in the brain.
![Page 12: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/12.jpg)
Core & Honors Vocabulary
When alleles for different characteristics are on separate chromosomes, they are distributed to gametes separately. This is known as: ________________________________________
![Page 13: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/13.jpg)
Answer
When alleles for different characteristics are on separate chromosomes, they are distributed to gametes separately. This is known as:
The Law of Independent Assortment
*Mendel's Law of Independent Assortment - The alleles of the many different genes present in any given
(diploid) organism segregate/assort from one another in a random fashion (see dihybrid cross)
![Page 14: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/14.jpg)
Vocabulary
Which sets of gametes can come from an individual with the genotype: AaNn
![Page 15: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/15.jpg)
Answer
AaNn
![Page 16: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/16.jpg)
Core & Honors VocabularyWhat is it called where an allele of a gene
separates from each other during meiosis?
![Page 17: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/17.jpg)
AnswerWhat is it called where an allele of a gene separates from each other during meiosis?
Mendel’s Law of Segregation
![Page 18: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/18.jpg)
Core & Honors VocabularyWhen two alleles for a gene cause a blended
phenotype, this is called: ___________________
![Page 19: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/19.jpg)
AnswerWhen two alleles for a gene cause a blended
phenotype, this is called: Incomplete Dominance
![Page 20: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/20.jpg)
VocabularyWhen one allele/genes affects multiple traits on the
phenotype, it is called: ____________________
![Page 21: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/21.jpg)
AnswerWhen one allele/genes affects multiple traits
on the phenotype, it is called: Pleiotropy
Pleiotropy – the ability of one gene to affect an organism in many ways.
![Page 22: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/22.jpg)
Core & Honors VocabularyWhen multiple pairs of genes determine a trait, it is
called: __________________________________
![Page 23: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/23.jpg)
AnswerWhen multiple pairs of genes determine a trait, it is
called: Polygenic Inheritance
![Page 24: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/24.jpg)
Core & Honors VocabularyWhen two different alleles for a trait are both
expressed, it is called: ________________
![Page 25: Explain this pedigree](https://reader035.vdocuments.mx/reader035/viewer/2022062500/568150c7550346895dbee8fd/html5/thumbnails/25.jpg)
AnswerWhen two different alleles for a trait are both
expressed, it is called: codominance