Choose the correct match.

Genes	Axis polarity
a. Maternal deficiency of gurken	i. Posteriorization of follicle cells
b. Maternal deficiency of torpedo	ii. Ventralization of embryo
c. Maternal deficiency of toll	iii. Dorsalization of embryo
	iv. No anterior posterior axis

TLS Online TPP Program

#Question id: 3945

#Unit 3. Fundamental Processes

About 30% of point mutations (substitutions) that occur in coding regions of DNA are harmless. Why?

TLS Online TPP Program

#Question id: 3946

#Unit 3. Fundamental Processes

Which type of mutation is likely to be the most harmful?

TLS Online TPP Program

#Question id: 3947

#Unit 3. Fundamental Processes

Of the following statements about the aminoacyl tRNA synthetases, which one must be true?

TLS Online TPP Program

#Question id: 3948

#Unit 3. Fundamental Processes

The following complex of macromolecules is found in a cell: DNA attached to RNA polymerase, attached to a growing chain of RNA, attached to a ribosome, attached to two tRNAs, attached to a growing chain of amino acids. The cell must be:

TLS Online TPP Program

#Question id: 3949

#Unit 3. Fundamental Processes

Which of the following observations supports the view that ribosomal RNA has catalytic activity?

TLS Online TPP Program

#Question id: 3950

#Unit 3. Fundamental Processes

Which of the following in not true of the nuclear envelope?