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Stems transport liquids
(a) Cut about 2 cm from the end of stems of celery and place them in cold water for about an hour to freshen. Next place the stems in dishes having red ink and let them stand for various hours. Observe the Stalks carefully. Cut them up into various Short lengths and observe where the ink has moved upward in the stem. Try to pull some of the tubes out of the celery stems.
(b) Cut about 2 cm from the end of the flower stalks of white carnations. The cutting Should be done with a sharp knife and under water. Place the stems with flowers in glasses having different shades of food colouring or coloured ink. Observe after various hours.
a) A recombinant DNA is formed when sticky ends of vector DNA and foreign DNA join. b) Define how the sticky ends are formed and get joined.
How many alleles of genes that condition X-linked traits do female and male individuals respectively present? For every correspondent gene to an X- linked trait women present a
Adverse Effects of Adefovir dipivoxil Doses of adefovir used for HBV are generally well tolerated but may be associated with asthenia, headache, diarrhea and abdominal pain. H
Q. Why is maternal milk important for the immune protection of the baby? Besides being nutritionally important like maternal milk participates in the defense of the baby agains
give a detail account of modes of locomotion in protozoa
What is the excitation threshold of a neuron? How does this threshold relate to the "all-or-nothing" rule of the neural transmission? The excitation threshold of a neuron is th
What are the three main types of trophic pyramids studied in Ecology? The three types of trophic pyramids studied in Ecology are the numeric pyramid, the biomass pyramid and th
Chemical Stress Survival of cells is dependent on carrying out of a set of chemical reactions (metabolic reactions) in a particular order. This results in a net gain in mass a
1. What are the examples of helobial endosperm
Explain Terbinafine Terbinafine (Lamisil) - Terbinafine is a synthetic allylamine approved by the FDA for treatment of onychomycosis of the toenail or fingernail due to derm
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