Sequences that presumably diverged as a result of gene duplication are paralogous.

TLS Online TPP Program

#Id: 9438

#Unit 11. Evolution and Behavior

Polygynous

In polygyny, one male mates with more than one female in a single breeding season, but females mate only with one male.

In species with male-male competition, males are often substantially larger than females, a phenomenon called sexual dimorphism.

TLS Online TPP Program

#Id: 105

#Unit 5. Developmental Biology

A cytoplasm that contains many nuclei is called a syncytium.

TLS Online TPP Program

#Id: 4632

#Unit 13. Methods in Biology

 What are the principles in flow cytometry?

• Light scattered by a laser or arc lamp

• Specific fluorescence detection

• Hydrodynamically focused stream of particles

• Electrostatic particle separation for sorting

• Multivariate data analysis capability

TLS Online TPP Program

#Id: 869

#Unit 13. Methods in Biology

The efficiency of PCR can be calculated by using Y = X (1+ E)n X is number of templates, E is mean PCR efficiency, n is number is PCR cycle. 

 

TLS Online TPP Program

#Id: 8421

#Unit 10. Ecological Principles

Human populations can exist at equilibrium densities in one of two ways:

1. High birth and high death rates

2. Low birth and low death rate