THEME 2: The figure below shows the types and numbers of gametes produced by a trihybrid. Phenotype +++ abc +bc |= a++ +b+ a+c ab+ a) Please complete the table indicating the number of offspring of the test-cross produced by each type of gamete and the class of gamete contributed by the tryhibrid (for example " R: single CO between a and Number of offspring ++C Possible CO events during gamete production in a trihybrid + COC= b b X Class Types AND Number of gametes c) Please calculate the COC and the value of Interference Non recombinant Non recombinant 142 +++ 158 a b c 99 +++ 99 + b c 96 a++ 96 a b c →72 +++ 72+ + c 71 a b + 71 abc b) Briefly explain the reasons behind the larger numbers of +++ and abc gametes. There are more of those types of gametes because 7+++ 7+b+ 5 a+c 5abc

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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THEME 2: The figure below shows the types and numbers of gametes produced by a trihybrid.
Phenotype
+++
abc
|=
+bc
a++
+b+
a+c
ab+
Possible CO events during
gamete production in a
trihybrid
++C
a
*
b
b
b
b
se
a) Please complete the table indicating the number of offspring of the test-cross produced by each type of gamete and the class of gamete contributed by the tryhibrid (for example " R: single CO between a and b)
Number of
offspring
с
Class
Types AND Number of
gametes
Non recombinant
Non recombinant
c) Please calculate the COC and the value of Interference
COC=
142 + + +
158 a b c
99 + + +
99 + b c
96 a + +
96 a b c
→72 +++
→ 72 ++ c
71 a b +
71 a b c
→7+++
7+b+
5 a+c
5abc
b) Briefly explain the reasons behind the larger numbers of +++ and abc gametes. There are more of those types of gametes because
Transcribed Image Text:THEME 2: The figure below shows the types and numbers of gametes produced by a trihybrid. Phenotype +++ abc |= +bc a++ +b+ a+c ab+ Possible CO events during gamete production in a trihybrid ++C a * b b b b se a) Please complete the table indicating the number of offspring of the test-cross produced by each type of gamete and the class of gamete contributed by the tryhibrid (for example " R: single CO between a and b) Number of offspring с Class Types AND Number of gametes Non recombinant Non recombinant c) Please calculate the COC and the value of Interference COC= 142 + + + 158 a b c 99 + + + 99 + b c 96 a + + 96 a b c →72 +++ → 72 ++ c 71 a b + 71 a b c →7+++ 7+b+ 5 a+c 5abc b) Briefly explain the reasons behind the larger numbers of +++ and abc gametes. There are more of those types of gametes because
Expert Solution
Step 1: Definition of Genotype

Genotypes are the genetic characteristics of a person or an organism in relation to a specific gene set. They stand for the particular set of alleles (gene variants) that an organism possesses for a certain set of features or genetic characteristics. The genetic information that a person gets from their parents is determined by their genotypes, which in turn affects their phenotype (the physical or observable features).

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