The low expression level of cry genes seems to be due to the presence in them of sequences not commonly found in plant coding regions. Such as

(1) Localized A+T-rich regions resembling plant intrans 

(2) 18 potential plant polyadenylation signal sequences 

(3) 13 ATTTA sequences, which destabilize mRNA

(4) Codons that are rarely used in plants

Which of the above statements are correct?                

TLS Online TPP Program

#Question id: 15171

#Unit 2. Cellular Organization

Fermentative microorganisms form organic acids from carbohydrates, whereas chemolithotrophs like Thiobacillus oxidize reduced

TLS Online TPP Program

#Question id: 15172

#Unit 2. Cellular Organization

Nitrifying bacteria such as Nitrosomonas and Nitrosospira are soil and aquatic bacteria of considerable ecological significance. They oxidize ammonia to nitrite. They are called as

TLS Online TPP Program

#Question id: 15173

#Unit 2. Cellular Organization

Microbes such as Chlorobium and Chromatium develop as visible green and purple zones. These microorganisms use

TLS Online TPP Program

#Question id: 15174

#Unit 2. Cellular Organization

Pyrococcus abyssi and Pyrodictium occultum are hyperthermophiles found in hot areas of the seafloor. They usually do not grow well

TLS Online TPP Program

#Question id: 15175

#Unit 2. Cellular Organization

The cell membranes of psychrophilic microorganisms have high levels of _______ and remain semifluid when cold.

TLS Online TPP Program

#Question id: 15176

#Unit 2. Cellular Organization

Some Psychrophiles which can grow at maximum temperature of about 35°C, they are called as 

A. Obligatory psychrophiles

B. Facultative psychrophiles

C. Psychrotrophs

D. Mesophiles

Which combination given below is correct.