Answer:
The long strands of double-helical DNA wrap around histone proteins. The wrapping goes on and on to achieve the secondary and tertiary level of packing. In the end, the whole thing is highly packed enough to fit inside the nucleus of a single cell.
Explanation:
Answer:
The correct answer is carbohydrate chain.
Explanation:
Plasma membrane contain three types of protein a peripheral protein b transmembrane protein and c GPI anchored protein.
Some membrane protein basically peripheral proteins contain oligosaccharide chain arranged towards the extracellular region of the plasma membrane with respect to the surface of that glycoprotein.
The oligosaccharide chain of glycoprotein play an important role in to identify signals from outside the cell.These signals may include the entry of virus particles inside our body,protein targeting etc.
The answe is the 4th choice
The amount of DNA present in the system of an organism that does not necessarily relate to how complex that certain organism is. There are single-celled microorganism with very few amount of DNA but are very complex with respect to arrangement of certain amino acid component of the DNA strands.
Answer:
A) The male stamens hold the pollen, the female pistil holds the ovule, and the petals attract pollinators.
Stamens (male reproductive parts of a flower) collectively forms the male reproductive organ (androecium) in a flower whereas pistil (the female reproductive part of a flower) forms the female reproductive organ called gynoecium.
Stamen consists two parts that are anther (that produces pollens, male reproductive cells) and a stalk like structure called filament, which supports/ holds pollen producing anther.
The female pistil holds the ovule that is enclosed by ovary in flowering plants (angiosperms) and the petals in a flower attract pollinators.
Thus, option A) is the right answer.
