In drosophila, the dorso-ventral axis of the embryo becomes divided into four regions early in embryogenesis.

A. The ventral mesoderm, which will form muscles and other internal connective tissues

B. The amnioserosa, which gives rise to an extra-embryonic membrane on the dorsal side of the embryo

C. The dorsal ectoderm, which gives rise to larval epidermis

D. The ventral ectoderm or neuroectoderm, which gives rise to the larval nervous system and epidermis

What is the correct sequence of these regions from ventral to dorsal?

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#Question id: 101

#Unit 1. Molecules and their Interaction Relevant to Biology

You have two bottles, each of which contains a white, crystalline substance. Your lab director tells you that one contains lactose and the other sucrose. Your job is to determine which bottle contains which sugar. Which procedure would you use?

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#Question id: 102

#Unit 1. Molecules and their Interaction Relevant to Biology

 The structure of a disaccharide is shown below. Which statement is correct about following structure?

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#Question id: 103

#Unit 1. Molecules and their Interaction Relevant to Biology

Lipids may be either hydrophobic or ________.

TLS Online TPP Program

#Question id: 104

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is the simplest lipids but they may be a part of or a source of many complex lipids.

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#Question id: 105

#Unit 1. Molecules and their Interaction Relevant to Biology

Isoprenoids are lipids which neither contain nor are derived from fatty acids and include

A) steroids.

B) waxes.

C) terpenes.

TLS Online TPP Program

#Question id: 106

#Unit 1. Molecules and their Interaction Relevant to Biology

fatty acid designated as 20:0 is ________, while one that is designated 20:3 D5,8,11 is