3rd Recitation post_JG (Linkage & Independent assortment)

3rd Recitation post_JG (Linkage & Independent...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Recitation 3 – Linkage and Recombination
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Each crossing-over event creates two recombinant chromosomes MetaphaseI Telophase I
Background image of page 2
6) You are studying two linked genes that influence hair type and eye color in mice. Straight hair (H) is dominant over curly (h), and brown eyes (E) are dominant over blue (e). You get the following numbers of offspring from your testcross: Straight hair, blue eyes 101 Curly hair, brown eyes 104 Straight hair, brown eyes 15 Curly hair, blue eyes 17 Which of the following drawings shows the allele arrangement in the dihybrid parent? A) B) C) D)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
There are two possible arrangements of alleles in a double heterozygote Coupling phase Repulsion phase When the double heterozygous parent in a testcross is in coupling phase, the recombinant offspring are dominant for one trait and recessive for the other. When the double heterozygous parent in a testcross is in repulsion phase, the recombinant offspring are dominant for both traits or recessive for both traits.
Background image of page 4
2) The cross diagrammed below shows the genotypes of parental strains and F 1 offspring for two
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 17

3rd Recitation post_JG (Linkage & Independent...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online