In rabbit, head of epididymis present at the head of the testis is called
vas deferens
cauda epididymis
gubernaculum
caput epididymis
D.
caput epididymis
In rabbit head of epididymic present at the head of the testis is called caput epididymis.
Epididymis differentiated into smaller posterictir enlarged part is called caud epididymis.
Gubernaculum is fibro muscular mesodermal tissue which helps in positioning the testes within the scrotal sac.
Which of the following organisms breeds only once in lifetime?
Bamboo
Oysters
Pelagic fishes
Birds
Birds
Assertion : In bacteria, photosynthesis occurs by utilizing wavelengths longer than 700 nm.
Reason : Here the reaction centre is B-890.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both the assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both the assertion and reason are false.
Match the following and choose the correct combination from the options given
| Column I | Column II |
| A. Yeast | 1. Reproductive by true regenration |
| B. Planaria | 2. Reproduce by budding |
| C. Mules | 3. Multiply by fragmentation |
| D. Protonema | 4. Do not reproduce |
A - 1; B - 2; C - 3; D - 4
A - 4; B - 3; C - 1; D - 4
A - 4; B - 1; C - 2; D - 3
A - 2; B - 1; C - 4; D - 3
A - 2; B - 1; C - 4; D - 3
In prokaryotes, genetic recombination can occur during
transduction
transformation
conjugation
all of these
The most primitive cell like chemical aggregates capable of growth and division were
chemoautotrophs
eobionts
prokaryotes
microspheres
Oogamous type of reproduction is seen in
(i) Fucus
(ii) Anabaena
(iii) Nostoc
(iv) Volvox
(i) only
(i) and (ii) only
(i) and (iii) only
(iii) only
(iii) only
