The IUCN Red List is based on a set of criteria to evaluate species vulnerability to extinction. Which one or more of the options is/are used as criteria?

.Absolute population size

Geographic range

Economic value

Change in population size over time

TLS Online TPP Program

#Question id: 2950

#SCPH28 | Zoology

During which phases of the cell cycle do the chromosomes exist in a doubled state?

TLS Online TPP Program

#Question id: 13093

#SCPH01 Biochemistry

You are studying a specific gene in yeast, and you want to express that yeast gene in E. coli. Your task is to design a strategy to insert the yeast gene into the bacterial plasmid. Below is a map of the area of the yeast genome surrounding the gene in which you are interested.

 

The distance between each tick mark placed on the line above is 100 bases in length

Below are the enzymes you can use, with their specific cut sites shown 5’-XXXXXX-3’ 3’-XXXXXX-5’

 

The plasmid is 5,000 bases long and the two farthest restriction enzyme sites are 200 bases apart. The plasmid has an ampicillin resistance gene somewhere on the plasmid distal from the restriction cut sites.

                                    

You transform your ligation planned in which two restriction enzymes would you use to design a way to get the insert into the vector if you had to use two enzymes simultaneously, into bacteria and plate the bacteria on Petri plates containing ampicillin. (You actually transform six different ligation mixtures, which are described below, into six different populations of cells, and plate each transformation onto a different plate, because you want to do all of the correct controls.) The next day you come in to lab to look at how many colonies of bacteria are on each plate. You are really excited, because the number of colonies you see on each plate tells you that the entire procedure worked! Which of the three following patterns of number of colonies did you see in order to conclude that you had a successful transformation?

In this table, DV = digested vector. DYG = digested yeast genome.

 

TLS Online TPP Program

#Question id: 1589

#SCPH28 | Zoology

Which of the following is a characteristic of the early stages of local inflammation?

TLS Online TPP Program

#Question id: 5013

#SCPH28 | Zoology

Following is correct match

Periods	Age of evolutionary event
A- Jurassic	I- Fish
B- Ordovician	II- Amphibian
C- Devonian	III- Gymnosperm
D-Carbonyferous	IV- Invertebrates

TLS Online TPP Program

#Question id: 1264

#SCPH05 I Biotechnology

 Desmosomes