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Vascular bundles of dicot stem are open, because of presence of cambium. In stems, the protoxylem lies towards the centre (pith) and the metaxylem lies towards the periphery of the organ. This type of primary xylem is called endarch.
Which term describes the condition when the stamens and pistils of hermaphrodite flowers mature at different times, facilitating cross-pollination?
Which mechanism refers to the presence of unisexual flowers on separate plants, as seen in plants like papaya and spinach?
Flowers do not open at all which ensures complete self pollination in
"Black Spot" disease in roses is caused by which pathogen?
In DNA fingerprinting large quantity of DNA (5-10 mg) is required and markers are ………………………
The level of heterosis is generally ……………… in cross pollinated species and ……………… in self-pollinated species
...The term that describes as sharp reduction in a genetic variation in a population following migration to and colonization of new area by a species is ca...
What is the genetic term used to describe mating between individuals related by descent or ancestry?
Term which refers to the pairing of homologous chromosomes during meiosis and is essential for crossing over?
The absence of functional pollen grains in otherwise hermaphrodite flowers can be defined as
