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Author Question: The sex of birds, some insects, and other organisms is determined by a ZW chromosomal arrangement in ... (Read 63 times)

Kikoku

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on: Mar 26, 2020

Question 1

The Lygaeus mode of sex determination is the ________.
◦ scheme based on single translocations in the X chromosome
◦ XY/XX scheme
◦ XX/XO scheme
◦ hermaphroditic scheme
◦ XO/YY scheme

Question 2

The sex of birds, some insects, and other organisms is determined by a ZW chromosomal arrangement in which the males have like sex chromosomes (ZZ) and females are ZW (similar to XY in humans). Assume that a recessive lethal allele on the Z chromosome causes death of an embryo in birds. What sex ratio would result in the offspring if a cross were made between a male heterozygous for the lethal allele and a normal female?
◦ 3:1 male to female
◦ 4:1 male to female
◦ 1:2 male to female
◦ 1:1 male to female
◦ 2:1 male to female
Essentials of Genetics ¦ Klug ¦ 9th Edition
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Marked as best answer by Kikoku on Mar 26, 2020

Bigfoot1984

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Reply #1 on: Mar 26, 2020
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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Kikoku

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Reply 2 on: Mar 26, 2020
Gracias!

matt95

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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