Keel is characteristic of the flowers of
gulmohur
cassia
Calatropis
Calatropis
D.
Calatropis
The bean or legume family is one of the most common plant families. Flowers in bean family typically have their two bottom petals grown together along one side forming a structure a bit like a narrow but deep scoop. This special Bean- family kind of two -in-one petal is called the keel, like the keel of a boat. Bean blossoms with the configuration are said to be papilionaceous.
In cloning of cattle a fertillized egg is taken out of the mother’s womb and
the egg is divided into 4 pairs of cells which are implanted into the womb of other cows
in the eight cell stage, cells are separated and cultured until small embryos are formed which are implanted into the womb of other cow
in the eight cell stage the individual cells are separated under electrical field for further development in culture media
in the eight cell stage the individual cells are separated under electrical field for further development in culture media
B.
in the eight cell stage, cells are separated and cultured until small embryos are formed which are implanted into the womb of other cow
In cloning of cattle a fertilized egg divides in 2, then in 4 and then in 8. This embryo is carefully removed from the womb. The embryonic cells are then separated using enzyme. Each isolated cell is kept in a nutrient medium and later implanted in the womb of a different 'host mother' cow.
Which one of the following plants is monoecious?
Marchantia
Pinus
Cycas
Cycas
B.
Pinus
Pinus is monoecious, which bear male cone as well as a female cone on the same tree on separate branches.
Marchantia Cyas and papaya are dioecious plants
What is common between vegetative reproduction and apomixis?
Both are applicable to only dicot plants
Both bypass the flowering phase
Both occur round the year
Both occur round the year
D.
Both occur round the year
Both vegetative and apomixis are an asexual reproduction. The progeny produced are genetically similar to a parent and are called clone.
Examine the figure below and select the right option giving all the four part (A, B,C and D) correctly identified.
A |
B |
C |
D |
Archegoni Ophore |
Female thallus |
Gemma cup |
Rhizoids |
A |
B |
C |
D |
Archegoni |
Female thallus | Bud | Foot |
A |
B |
C |
D |
Seta |
Sporophyte | Protonema | Rhizods |
A |
B |
C |
D |
Seta |
Sporophyte | Protonema | Rhizods |
A.
A |
B |
C |
D |
Archegoni Ophore |
Female thallus |
Gemma cup |
Rhizoids |
Marchantia, a liverwort, is dioecious. The female thallus bears female sex organs called archegonia on special branches called archegoniophores. The plant's body is anchored by unicellular rhizoids.