MCQ
Tunica albuginea is related to:
- ALiver
- BLung
- CSpleen
- DTestes
Explanation:
Tunica albuginea is related to testes.
It is the primary sex organ in human males.
The testes are situated outside the abdominal cavity within a pouch called scortum.
In adults, each testis is oval in shape, with a length of about 4 to 5cm and width of about 2 to 3cm.
The testis is covered by a dense covering.
They are enclosed in an outer tough capsule of collagenous connective tissue, the tunica albuginea.
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Statement $I$ : Bt toxins are insect group specific and coded by a gene cry $IAc$.
Statement $II$ : Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic $\mathrm{pH}$ of the insect gut.
In the light of the above statements, choose the correct answer from the options given below: