Sex Linked Traits | Genetics | Biology

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Segment from the program Understanding Inheritance: Mendel, Method, and Mapping.

DVD Description
Our Mendel DVD delves into the fundamental aspects of genetic inheritance and how Mendel discovered the principles that form the foundation of modern genetics. The program first goes to Mendel's pea garden to investigate how Mendel came to propose the Laws of Dominance, Independent Assortment and Segregation and how those laws have been modified as a result of work done by those that followed Mendel. The program later explores sex-linked traits, the use of Punnet squares, incomplete dominance, codominance, and polygenic inheritance.

Category:

Education

Tags:

• Sex
• Linked
• Traits
• fruit
• flies
• morgan
• homozygous
• f1
• generation
• f2
• heterozygous
• phenotypes
• punnett
• square
• squares
• chromosome
• sex
• color
• blindness
• genetics
• biology
• genes
• recessive
• dominant

[tenyc424]

I don't get the second pundett square. Shouldn't it be 3 red eyed and 1 white eyed? How does a white X chromosome and Red X chromosome produce a a white eyed female? I think this chart is wrong. It would be correct if the male had two white eyed chromosomes.

[greatpacificmedia]

@tenyc424 A red X chromosome and a white X chromosome would produce a red eyed female, our video doesn't state otherwise. In regards to the second statement a male can't have two white eyed chromosomes.

[whydizz]

Why's everyone saying the punnet sq is wrong? Its right. X^R X^r x X^R Y^r. R is dominant.

[Southpaw45000]

@hannaharnott yeah buddy.

-$wagga

[hannaharnott]

Cool! saw this in my online biology class!

~yoshi

[lychee159]

this video confuses me even more..*sigh*..

[raiderlax5]

@greatpacificmedia the F2 generation punnett square depicts a red eyed male mating with a heterozygous red eyed female. the result would be all red eyed females however, the punnett square depicts a heterozygous female having white eye phenotype

[dnanalahcnap]

I like how you say HWHY THEYED

[pensiveshade]

THREE minutes in the FEMALE on the BOTTOM left SHOULD be RED--video mistake!!!

[ToraKaen]

the only reason the female doesn't have the white eye is because it is a ressive gene.

[nahedh]

3:51 Melbourne?

[boblee666]

@THE88DREAMERR THATS WHAT SHE SAID.