Answered: In rice, male sterility is controlled…

Name: In rice, male sterility is controlled by maternal cytoplasmic elements
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Description: In rice, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the male part of rice plants (i.e. the stamen) unable to produce fertile pollen; the female parts, however, remain receptive to pollination by pollen from

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

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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In rice, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the male part of rice plants (i.e. the stamen) unable to produce fertile pollen; the female parts, however, remain receptive to pollination by pollen from male fertile rice plants. However, the presence of a nuclear fertility restorer gene F restores fertility to male-sterile lines. Give the result(s) of the cross and explain the phenotype of the offspring.

Exercise 8
Extrachromosomal Inheritance
ACTIVITY SHEET
ALE
I.
In rice, male sterility is controlled by maternal cytoplasmic elements. This phenotype
rendersthe male part of rice plants (i.e. the stamen) unable to produce fertile pollen; the
female parts, however, remain receptive to pollination by pollen from male fertile rice
plants. However, the presence of a nuclear fertility restorer generëstores fertility to male
sterile Ihes. Give the result(s) of the cross and explain the phenoYpe of the offspring.
Gene as signment : ms – male sterile
mf – male fertile
F- restores fertility to the cytoplasm
f- maintains genotype of the cytoplasm
-
А.
ms
ms
FF
ff
ms
Ff
HIS,
STIS
B.

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