Answer:
DNA:
Dexoyribonucleic acid is the genetic material of almost all the organisms except some virus. DNA contains deoxyribose sugar that lacks 2'OH group on second carbon. The nitrogenous base pair of DNA are adenine, guanine, thymine and cytosine. DNA cannot acts as an enzyme.
RNA:
Ribonucleic acid is present as genetic material in few viruses only. RNA contains oxyribose sugar that has 2'OH group at second position. The nitrogenous base pair of RNA are adenine, guanine, uracil and cytosine. RNA can acts as any enzyme in biological reactions.
Answer:
D
Explanation:
The cuticle of a plant helps protect its aerial epidermis from things like environmental stresses and desiccation.
Answer:
There are three castes in honey bees:
- drones
- workers
- queens.
Explanation:
There are three castes in honey bees:
- Drones-Male honey bees are drones. The head and thorax of the drone are bigger than the females.
- Queens-Honey bee queens are the species' reproductive women.
- Workers-Workers' sweet bees are generally non-reproductive women.
Answer:
Increases homocysteine levels
Explanation:
Homocysteine is an aminoacid that is resent in our blood already. This is mostly increased in our blood due to increased consumption of meat and other potential reasons, such as smoking.
High level of this aminoacid are linked to the development of heart diseases. This is because a high homocysteine level causes development of heart diseases along with other risks of renerl diseases.
Hope it helps!
<span>Photosynthetic pigments, which absorbs the most sunlight is chlorophyll a.
This is the most abundant pigment in plants which absorbs visible light with wavelengths of 430nm( blue) and 662nm( red). It contains a hydrophobic phytol chain (in a lipid membrane) and a tetrapyrrolic ring (outside of the membrane) that absorbs the energy from light. At the centre of the structure is magnesium, Mg that can accept and donate e-.</span>
