Neonates that are kept in 100% oxygen incubators for several days become blind when they are removed from the incubator, a condition referred to as retrolental fibroplasia. What is the explanation for the loss of sight?

#Question id: 7223

#Unit 5. Developmental Biology

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?

#Question id: 326

#Unit 1. Molecules and their Interaction Relevant to Biology

Dispersion force’s interaction energy is proportional to (take “r” as the distance between the two particles) ___________

#Question id: 34124

#Unit 7. System Physiology – Animal

#Question id: 45

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the standard free-energy change, ΔG°, under physiological conditions (E. coli grows in the human gut, at 37 °C) for the following reaction? (Keq = 7.8 × 10^2)

Glucose + ATP → glucose 6-phosphate + ADP

#Question id: 27377

#Unit 1. Molecules and their Interaction Relevant to Biology

Calculate the number of electrons, protons and neutrons in 1 mole of 16O⁻² ions.