Select the correct statements with respect to diseases and immunisation

• if due to some reason B and T - lymphocytes are damaged, the body will not produce antibodies against a pathogen

• injection of dead/inactivated pathogens causes passive immunity

• certain protozoans have been used to mass produce hepatitis B vaccine

• certain protozoans have been used to mass produce hepatitis B vaccine

In history of biology, human genome project led to the development of 

• biotechnology

• biomonitoring

• bioinformatic 

• bioinformatic 

Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child?

• Two X - chromosomes 

• Only one Y- chromosomes

• Only one X - chromosome

• Only one X - chromosome

54.

Which one of the following techniques made it possible to genetically engineer living organism

• Recombinant DNA techniques

• X -ray diffraction

• Heavier isotope labelling

• Heavier isotope labelling

Ureters act as urogenital ducts in

• humans males

• human females

• frog's both males and females

• frog's both males and females

Read the following four statements (I - IV) about certain mistakes in two of them

I .The first transgenic buffalo, Rosie produced mile which was human alpha - lactal bumin enriched

II. Restriction enzymes are used in isolation of DNA from another macro -molecules.

III. downstream processing is one of the steps of R-DNA technology.

IV. Disarmed pathogen vectors are also used in the transfer of R - DNA into the host. 

Which are the two statements having mistakes?

• Statement (II) and (III)

• Statements (III) and (IV)

• Statements (I) and (III)

• Statements (I) and (III)

Good ozone is found in the 

• mesosphere

• troposphere

• stratosphere

• stratosphere

Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct? 

• Yeast - statins

• Acetobacter aceti - acid

• Clostridium Butulicum - lactic acid

• Clostridium Butulicum - lactic acid

The logistic population growth is expressed by the equation

• 
• 

• dN/dt = rN

• dN/dt = rN

Examine the figure below and select the right option giving all the four part (A, B,C and D) correctly identified.

• A	B	C	D
  Archegoni Ophore	Female thallus	Gemma cup	Rhizoids

• A	B	C	D
  Archegoni	Female thallus	Bud	Foot

• A	B	C	D
  Seta	Sporophyte	Protonema	Rhizods

• A	B	C	D
  Seta	Sporophyte	Protonema	Rhizods