MCQ
It is lobefins.
- APalycosaurus
- BTherapsids
- CThreodonts
- ✓Coelacanth
✓
Answer
Correct option: D.
Coelacanth
d
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
$A$ - Restriction endonucleases are also called'molecular scissors;
→$R$ - When fragments generated by restrictionendoncleases are mixed, they join togetherdue to their sticky ends.
Which extra-embryonic membrane in humans prevents desiccation of the embryo inside the uterus?
The diagram shows an important concept in the genetic implication of $DNA$. Fill in the blanks $A$ to $C$.
→Which of the following statement is not true?
→$I.$ DNA being a hydrophilic molecule cannot pass through cell membranes
$II.$ Agrobacteriumtumefaciens delivers a piece of $DNA$ known as $'Z-DNA'$ in the Tiplasmid which transforms normal plant cells into tumour cells to produce chemical against pathogens
$III.$ Retrovirus, adenovirus, papillomavirus are also now used as cloning vectors in animal because of their ability to transform normal cells into cancerous cell.
$IV.$ In genetic engineering, $DNA$ from different sources are cut with the same restriction enzymes so that both $DNA$ fragments have same kind of sticky ends
Choose the correct option
Decomposers like fungi and bacteria are:
- Autotrophs.
- Heterotrophs.
- Saprotrophs.
- Chemo-autotrophs.
- Choose the correct answer.
Which of the following statements is incorrect?
Cell division or mitosis is a normal process in a living cell, but sudden and abnormal mitosis in an organ will frequently result in a
Role of isolation in evolution is:
This is the reason for rapid speciation in current crop plants:
Which of the following hormones prepares the uterus for implantation?