There exists the same question with the following choices.
1.Meiosis produces eggs and sperm that are alike.
<span>2.Meiosis provides for chromosomal variation in the gametes produced by an organism. </span>
<span>3.Equal numbers of eggs and sperm are produced by meiosis. </span>
<span>4.The gametes produced by meiosis ensure the continuation of any particular species by asexual reproduction.
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The correct answer is <span>2. Meiosis provides for chromosomal variation in the gametes produced by an organism. It happened during cross-over and segregation and law of independent assortment.</span>
Anabolic steroids are synthetic forms of the male hormone testosterone that are used to cause muscle hypertrophy.
It is properly knowns as anabolic-androgenic steroids (AAS). They are anabolic in nature and increases the protein found within the cells especially in the skeletal muscles. It also has varying degrees of androgenic and virilizing effect which includes inducing the development and maintenance of male secondary sexual characteristics such as facial and hair body growth.
In the 1930s AAS were synthesized and are recently used as a therapeutic medicine to stimulate muscle growth, increase appetite, induce puberty in males and treat wasting conditions among cancer and AIDS patients. It was also acknowledged by the American College of Sports Medicine that AAS, when joined with an adequate diet, can contribute to increasing the body weight, often as lean mass increases and the gains in muscular strength are achieved by doing high-intensity workout and proper diet.
Answer:
The human eye is the prime organ of the body, which associates with the photons of light and allows one to see various things. The unique cells found in retina, which does activity of seeing are cones and rods cells. Rods help to see in dim light vision, while on the other hand, cone cells are unique in recognizing different colors.
These cells comprise photoreceptor proteins that help in trapping photons at particular wavelength. Mutation in the gene encrypting for these proteins results in permanent or temporary vision issues. The extremity of defects relies upon the degree to which mutation takes place.
The mutation in rod cells photoreceptor proteins leads to night blindness and retinitis pigmentosa. Retinitis pigmentosa refers to an inherited disorder that takes place because of early loss of rod cell, which destructs retina. On the other hand, night blindness does not mean complete blindness night, however, inadequate tendency to see in low light.
Identically, the mutation in the cone cell also results in vision issues, known as red color blindness and tritanopia. Tritanopia refers to a kind of color blindness, which originates because of insensitivity of blue receiving protein gene towards blue light. On the other hand, red color blindness refers to insensitivity of red receiving cone cells in captivating long-wavelength photons.
The 10% rule means that when energy is passed in an ecosystem from one trophic level to the next, only 10% of the energy will be passed on.
If the mutation occurs during meiosis, the mutation will be incorporated into a gamete. If that gamete is the one that eventually fuses with another gamete (i.e. if it's the sperm that fertilizes the egg), that mutation will be passed on to the offspring. As all the offspring's cells are the result of the first two gametes, all the organism's cells will have that mutation. Obviously this can have dire consequences for the offspring, if the mutation is harmful.
