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a. A certain species of beetle may have a smooth or rough plate over the thorax. The plate may be translucent or opaque. A female beetle that is true breeding for a smooth, translucent plate mates with a male beetle with a rough, opaque plate. All the offspring from this cross have plates that are smooth and translucent. When the reciprocal cross is made, all the offspring have rough, translucent plates. Explain the inheritance mechanisms that produce these results and where applicable indicate the dominance relationship. b. A type of pigeon may have spots on its wings or the wings may be plain. A female bird homozygous for spots is crossed with a male bird homozygous for plain. All the male offspring have spots and all the female offspring have plain wings. When the F1 offspring are crossed with each other, the resulting F2 are produced in the following ratios: Males: 3 spots : 1 plain Females: 3 plain : 1 spots

a. A certain species of beetle may have a smooth or rough plate over the thorax. The plate may be translucent or opaque. A female beetle that is true breeding for a smooth, translucent plate mates with a male beetle with a rough, opaque plate. All the offspring from this cross have plates that are smooth and translucent. When the reciprocal cross is made, all the offspring have rough, translucent plates. Explain the inheritance mechanisms that produce these results and where applicable indicate the dominance relationship. b. A type of pigeon may have spots on its wings or the wings may be plain. A female bird homozygous for spots is crossed with a male bird homozygous for plain. All the male offspring have spots and all the female offspring have plain wings. When the F1 offspring are crossed with each other, the resulting F2 are produced in the following ratios: Males: 3 spots : 1 plain Females: 3 plain : 1 spots

Human Anatomy & Physiology (11th Edition)
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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a. A certain species of beetle may have a smooth or rough plate over the thorax. The plate may be translucent or opaque. A female beetle that is true breeding for a smooth, translucent plate mates with a male beetle with a rough, opaque plate. All the offspring from this cross have plates that are smooth and translucent. When the reciprocal cross is made, all the offspring have rough, translucent plates. Explain the inheritance mechanisms that produce these results and where applicable indicate the dominance relationship. b. A type of pigeon may have spots on its wings or the wings may be plain. A female bird homozygous for spots is crossed with a male bird homozygous for plain. All the male offspring have spots and all the female offspring have plain wings. When the F1 offspring are crossed with each other, the resulting F2 are produced in the following ratios: Males: 3 spots : 1 plain Females: 3 plain : 1 spots Explain the inheritance mechanism that produces these results and indicate the dominance relationship.
Transcribed Image Text:a. A certain species of beetle may have a smooth or rough plate over the thorax. The plate may be translucent or opaque. A female beetle that is true breeding for a smooth, translucent plate mates with a male beetle with a rough, opaque plate. All the offspring from this cross have plates that are smooth and translucent. When the reciprocal cross is made, all the offspring have rough, translucent plates. Explain the inheritance mechanisms that produce these results and where applicable indicate the dominance relationship. b. A type of pigeon may have spots on its wings or the wings may be plain. A female bird homozygous for spots is crossed with a male bird homozygous for plain. All the male offspring have spots and all the female offspring have plain wings. When the F1 offspring are crossed with each other, the resulting F2 are produced in the following ratios: Males: 3 spots : 1 plain Females: 3 plain : 1 spots Explain the inheritance mechanism that produces these results and indicate the dominance relationship.
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