The disease caused by the fungus Aspergillus fumigatus is:
A. Histoplasmosis
B. Aspergillosis
C. Candidiasis
D. Ringworm
Answer: Option B
Solution (By JKSSB Mock Tests)
Aspergillosis is an opportunistic fungal infection, often affecting the lungs, caused by inhalation of Aspergillus spores. Candidiasis is by Candida, ringworm by dermatophytes, histoplasmosis by Histoplasma.
Explanation:
The TATA box (consensus sequence TATAAA) is a highly conserved DNA sequence located about 25-30 base pairs upstream of the transcription start site in the promoter region of many eukaryotic genes transcribed by RNA polymerase II. It is specifically recognized and bound by the TATA-binding protein (TBP), which is a crucial subunit of the general transcription factor TFIID. The binding of TBP initiates the assembly of the pre-initiation complex, including RNA polymerase II, allowing transcription to begin.
Explanation:
Ecological succession is the gradual and predictable process of change in the species composition of an ecological community over time. It occurs after a disturbance (secondary succession) or on a newly formed, lifeless substrate (primary succession). The final, stable community that is in near equilibrium with the environment is called the climax community. The entire sequence of communities is called a sere.
Explanation:
Essential fatty acids are polyunsaturated fats that the human body lacks the enzymes to synthesize, so they must be consumed in the diet. The two primary essential fatty acids are linoleic acid (an omega-6 fatty acid) and alpha-linolenic acid (an omega-3 fatty acid). They are precursors for other important lipids like arachidonic acid and are crucial for cell membrane structure and eicosanoid synthesis. Palmitic and stearic are saturated fats.
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