In some goats, the presence of horns is produced by an autosomal gene that is dominant in males and recessive in females. A horned female is crossed with a hornless male. The F1 offspring are intercrossed to produce the F2. What proportion of the F2 offspring will have horns?

TLS Online TPP Program

#Question id: 12069

#Part-A Aptitude & General Biotechnology

Post-tetanic facilitation is thought to be the result of

TLS Online TPP Program

#Question id: 12173

#Part-A Aptitude & General Biotechnology

Female with only one X chromosome is a characteristics of individual with

TLS Online TPP Program

#Question id: 12173

#Part-B Specialized Branches in Biotechnology

Female with only one X chromosome is a characteristics of individual with

TLS Online TPP Program

#Question id: 12187

#Part-B Specialized Branches in Biotechnology

How cells know whether sister kinetochores are properly attached to the mitotic spindle?

TLS Online TPP Program

#Question id: 12188

#Part-B Specialized Branches in Biotechnology

The series of events by which APC/C promotes the separation of sister chromatids at anaphase.

A. all the kinetochores have attached to spindle microtubules and the spindle apparatus is properly assembled and oriented.

B. Cdc20 specificity factor associated with APC/C directs it to ubiquitinylate securin and mitotic cyclins. 

C. A protease known as separase cleaves the cohesin subunit Scc1 (Rad21), breaking the protein circles linking sister chromatids.

D. anaphase begins as poleward force exerted on the kinetochores moves the split sister chromatids toward opposite spindle poles.

E. Following securin degradation and a decrease in mitotic CDK activity.

Which of the following series is correct?

TLS Online TPP Program

#Question id: 12190

#Part-B Specialized Branches in Biotechnology

CDK activity is modulated by the following proteins:

(a) cyclin, (b) CAK, (c) Wee1,  (d) p21. Following protein act as:

I. Inhibitory kinase

II. CKI Family of proteins

III. Activatory kinase

IV. Regulatory subunit

Which of the following is correct?