MCQ
Study of inter - relationships between organisms and their environment is
- ✓Ecology
- BEcosystem
- CPhytogeography
- DEthology
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$I.$ Myosin head binds to the exposed active site on action to form a cross bridge
$II.$ The Z-line attached to these actin are also pulled in wards there by causing shortening of sarcomere also called contraction
$III.$ This pulls the attached actin filaments towards the centre of $A$-band The correct option is
| List $I$ | List $II$ |
|
$A$. Two or more alternative forms of a gene |
$I$. Backcross |
| $B$. Cross of $F_1$ progeny with homozygous recessive parents | $II$. ploidy |
| $C$. Cross of $F_1$ progeny with any of the parents | $III$. Allele |
| $D$. Number of chromosome sets in plant | $IV$. Test cross |
Choose the correct answer from the options given below: