MCQ
Adventitive polyembryony/ from nucellar cells occur in.
- APoa
- BBrassica
- CAllium
- DCitrus
Explanation:
Polyembryony is the occurrence of more than one embryo in a single seed.
In adventive polyembryony, there is the formation of extra embryos due to sporophytic budding.
One or more sporophytic cells, either nucellus or integuments undergo stages of embryogeny and eventually develop into mature embryos.
This kind of polyembryony is found in citrus fruits.
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$I.$ Recombinant $DNA$ technology popularly known as genetic engineering is a stream of biotechnology which deals with the manipulation of genetic material by man in vitro
$II. pBR322$ is the first artificial cloning vector developed in $1977$ by Boliver and Rodriquez from $E$. coli plasmid
$III.$ Restriction enzymes belong to a class of enzymes called nucleases
Which of the statements given above are correct?
$I$. National parks
$II$. Wildlife sanctuaries
$III$. Biosphere reserves
$IV$. Sacred forests/Lakes
Choose the correct option