Answer:
B) 78 Chromosomes
Explanation:
Double of chromosomes in sperm cells.
b. has a genome made of RNA.
c. has the simplest of all protein coats.
d. was discovered before any other virus.
How is the virus reproduced during the lysogenic cycle?
a. through reproduction of the host cell
b. by using viral enzymes to reproduce viral DNA
c. by using the cell's enzymes to reproduce viral DNA
d. by breaking the cell open and releasing new viruses
Ans. (b). has a genome made of RNA.
Retroviruses are viruses with RNA molecules as their genome. They insert a copy of their RNA genome into the host cell DNA and change the cell genome. These viruses are generally known as single-stranded positive-sense (+ strand) RNA viruses.
Examples: Human immunodeficiency virus and hepatitis B virus.
Thus, the correct answer is option (b).
Ans. (a). through reproduction of the host cell.
Lysogenic life cycle is a virus reproductive cycle that involves integration of viral nucleic acid into host's genome or formation of a replicon in host's cytoplasm.
The host cells (bacterial cells) remain alive and reproduce normally, so thus, viruses reproduce through the reproduction of host (bacterial cells).
Thus, the correct answer is option (a).
The ester bonds in lipids are found where the fatty acids of the lipid join to the glycerol back bone of the lipid.
Lipids are made from two kind of molecules namely Glycerol and Fatty acids. A glycerol molecule is made up of three carbon atoms with an alcohol group attached to each of the carbon atoms and hydrogen atoms occupying the remaining positions.
A fatty acids consist of an acid group at the end of the molecule and a hydrocarbon chain.
In a process called esterification, the acid group of the fatty acid joins to the alcohol group of the glycerol molecule and water is released resulting in the formation of a linkage called an ester bond.
The pesticide is sprayed, and only those that can withstand it survive while the others perish. Those who can withstand it generate offspring who can withstand it.
Pesticides have the potential to pollute lawn, water, as well as other vegetation. Herbicides can be poisonous to a variety of different organisms in contrast to insects and plants, such as birds, fish, helpful invertebrates, and quasi plants. staying inside the rooms where bug sprays are being used or bringing inside household items designed for the outdoors.
Pesticides have the potential to pollute turf, water, soil, and other plant life. In addition to destroying weeds or insects, pesticides can be poisonous to a variety of other animals and plants, including fish, birds, beneficial insects, and non-target plants. residing in the areas where foggers are utilized or bringing indoor-use items inside your home. Any substance "designed for avoiding, eliminating, repelling, or reducing any pest" is referred to as a pesticide.
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the water cycle
uneven heat distribution
even pressure distribution
Answer: Option (c) is the correct answer.
Explanation:
Wind circulation is defined as the flow of air from one place to another. This occurs due to uneven heating of air as increase in temperature raises the kinetic energy of molecules. As a result, warm air moves more rapidly.
Whereas in cold air molecules do not have enough kinetic energy. Hence, they move at slow speed.
Therefore, we can conclude that the main reason for wind or air circulation is uneven heat distribution.