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In a post of no less than 25 words, describle how one of the genetic inheritance patterns described in the videos differs from a simple Mendelian pattern.

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Keith Leannon
Keith LeannonLv2
28 Sep 2019

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Related questions

DNA Sequencing (Sanger method):

https://www.dnalc.org/resources/animations/sangerseq.html

Questions:

5. In what ways are PCR and Sanger sequencing similar?

6. What is the important difference in Sanger sequencing?

7. Why is size separation of DNA fragments so important in Sanger sequencing? How are the DNA fragments separated in the animation?

Additional videos on Sanger DNA sequencing:

Sanger Sequencing

https://www.youtube.com/watch?v=6ldtdWjDwes

The Sanger Method of DNA Sequencing

https://www.youtube.com/watch?v=FvHRio1yyhQ

____________________________________________________________________________

Bacterial Transformation:

https://www.dnalc.org/resources/animations/transformation1.html

Questions:

8. What are plasmids?

9. What was used to cut the plasmids?

10. What was used to seal the DNA fragments together?

11. How did the researchers select for bacteria that contain both antibiotic resistance genes?

12. What is a recombinant plasmid?

These all relate to exceptions to the inheritance patterns encountered by Mendel.​

Why do multiple and lethal alleles often result in modifications of the classic Mendelian monohybrid and dihybrid ratios?

Select the four correct statements.

-When an essential gene is mutated, it can result in a lethal phenotype. There are no classic Mendelian monohybrid and dihybrid ratios.
-In the case of codominance, heterozygotes produce gene products from both alleles of a gene. Classic Mendelian monohybrid and dihybrid ratios are modified by codominance.
-In the case of incomplete dominance, the phenotype of the heterozygote is distinct from and often intermediate to the phenotypes of homozygous individuals. Classic Mendelian monohybrid and dihybrid ratios are modified by incomplete dominance.
-Genes exist in a large number of allelic versions and a diploid organism has two homologous gene loci that may be occupied by different alleles of the same gene. This can result in many different phenotypes for traits, which may not follow typical Mendelian ratios.
-When an essential gene is mutated, it can result in a lethal phenotype. This results in a modification of classic Mendelian ratios.
-The phenotype of the heterozygous genotype is distinct from and often intermediate to the phenotypes of the homozygous genotypes. The joint expression of both alleles in a heterozygote is called codominance. There are no classic Mendelian monohybrid and dihybrid ratios.
-Genes exist in a large number of allelic versions, but in a diploid organism, only one allele of the gene can occupy one homologous gene loci. Classic Mendelian inheritance cannot explain this phenomenon.
-Each gene produces a unique gene product. The effect of one allele in a heterozygote completely masks the effect of the other. Classic Mendelian genetics cannot explain this phenomenon.

This discussion focuses on the factors that nutrition in adolescents. Yourshould adress the following two points: 1) identify some of the emotional and psychological factors that influence poor eating styles in teens and young adults. Discuss these factors as they relate to overeating and obesity as well as under eating and anorexia. 2) Media and magazine images have tremendous influence on maturing teens and young adults. View the following three videos below and choose one to discuss. •Advertising http://www.upworthy.com/5-minutes-of-what-the-media-actually-does-to-women-8 •Self Image https://www.youtube.com/watch?v=XpaOjMXyJGk •Photoshop http://www.upworthy.com/see-why-we-have-an-absolutely-ridiculous-standard-of-beauty-in-just-37-seconds Make suggestions for how to promote change on these issues and how to support young people in developing a positive self image.

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