I do a chi square analysis of the offspring from my cross of a black mouse and albino mouse. If the black mouse was heterozygous I should have expected a 1:1 ratio, and I got 6 albino and 2 black mice. What is my chi square value?

#Question id: 774

#Unit 1. Molecules and their Interaction Relevant to Biology

RISC stands for:

#Question id: 1522

#Unit 4. Cell Communication and Cell Signaling

Conversion of a proto-oncogene into an oncogene, also called activation, generally involves a gain-of-function mutation. Following statements are regarding to the mechanisms that produce oncogenes from the corresponding proto-oncogenes.

A. A change in a single base pair in a proto-oncogene that results in a hyperactive or constitutively active protein product.

B. A chromosomal translocation that fuses two genes together to produce a hybrid gene encoding a chimeric protein whose activity, unlike that of the parent proteins, is permanently suppress.

C. A chromosomal translocation that brings a growth regulatory gene under the control of alternative enhancers that cause inappropriate expression of the gene.

D. Amplification of a DNA segment including a proto-oncogene so that numerous copies exist, leading to overproduction of the encoded protein.

Which of the following statements are correct?

#Question id: 11486

#Unit 7. System Physiology – Animal

The contraction of skeletal muscles is based on ________

#Question id: 12087

#Unit 10. Ecological Principles

#Question id: 11063

#Unit 7. System Physiology – Animal

A man inspires 1000 ml from a spirometer. The intrapleural pressure was −4 cm H2O before inspiration and −12 cm H2O the end of inspiration. What is the compliance of the lungs?