Answer:
The Exosphere
Explanation:
The Exosphere is the farthest away from the Earth and the least dense. Going towards the Earth a space ship would pass through the Ionosphere, then the Stratosphere where high flying airplanes can be found, and finally closest to the Earth is the Troposphere which is the thickest layer where all our weather takes place.
<span>One parent is an albino with the genotype aa (recessive homozygous), while another parent has genotype AA (dominant homozygous). If they mate:</span>
<span>
Parents aa x AA</span> F1 generation: Aa Aa Aa Aa <span><span>
This means that </span>c. all offspring are normal.</span>
<span>All of them are carriers of the albino allele (a), but albinism is expressed only when there are two recessive alleles.</span>
Answer:
Answer is As shown by fossils, many ancient organisms resembled modern organisms, but were not identical to them.
Explanation:
Answer:
The mentioned characteristics of variability are witnessed because of the phenomenon known as X chromosome inactivation in heterozygous females. As females possess two X chromosomes, they actually should not possess any color blindness.
The phenomenon of X-chromosome inactivation takes place in a random manner at the time of embryo development. During this only one X chromosome is inactivated. If the chromosome comprising the defective gene is inactivated, the individual will possess normal vision.
If the chromosome comprising the usual gene gets inactivated than the individual will be color blind. In the given case of female, X inactivation took place in one eye. The inactivation of normal alleles has taken place and thus she possesses normal vision with one eye and is color blind in the other eye.
Open sacricity to ge the answer on the pdf
