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Author Question: The maternal effect in Lymnaea is such that the genotype of the egg determines the direction of ... (Read 29 times)

altibaby

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on: Jul 13, 2021

Question 1

Direction of shell coiling in the snail Lymnaea peregra is conditioned by a form of extrachromosomal inheritance known as ________.
◦ sex-linked inheritance
◦ epistasis
◦ heteroplasmy
◦ maternal effect
◦ independent assortment

Question 2

The maternal effect in Lymnaea is such that the genotype of the egg determines the direction of shell coiling regardless of the genotype of the offspring. Apparently, the cause of this spectacular maternal effect results from ________.
◦ genophores present in the egg cytoplasm
◦ colicins "poisoning" one of the cleavage centers
◦ orientation of the spindle apparatus in early cleavage
◦ allelic substitution as demonstrated from RNA injection experiments
◦ the F factor exerting its influence on the centrosome
Concepts of Genetics ¦ Palladino, Spencer, Cummings, Klug ¦ 11th Edition
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Marked as best answer by altibaby on Jul 13, 2021

jamesnevil303

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Reply #1 on: Jul 13, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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altibaby

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Reply 2 on: Jul 13, 2021
Great answer, keep it coming :)

parker125

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Reply 3 on: Yesterday
Wow, this really help

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