Ans.
Albinism shows a genetic disorder, which is characterized by absence of coloration or pigmentation in individuals. It is an autosomal recessive disorder that transmits from parents to their offspring, when offspring receives both the mutated copies of gene responsible for albinism.
For a genetic disorder, dominant or wild type allele is represented by capital letter, such as 'A', while recessive or mutated allele is represented by small letter, 'a'. As 4th picture is representing male and female gametes with recessive alleles (a) , the resulting zygote will have both recessive alleles for albinism (aa), '4th zygote will develop into an albino child.'
Answer:
B
Explanation:
To determine the genotypic ratios of crosses
<span>This is the Pituitary Gland which controls other glands such as the adrenal gland as well as secretes its own set of hormones is closest to the sphenoid bone. There are two lobes, anterior and posterior. The spheroid bone surface is immediately below the pituitary gland posterior. The posterior of the pituitary gland will release ADH or anti-diuretic hormone as well as oxytocin (assuming a female).</span>
Answer:
1. Earth's ozone layer is responsible for absorbing infrared and ultraviolet rays from the sun.
2. Changes in the composition of the atmosphere have caused gradual changes in earth's climate, causing changes in plant and animal life that contributed to mass extinctions.
3. Chemical chlorofluorocarbons (CFCs) have been banned and replaced with hydrochlorofluorocarbons (HCFCs).
4. Naturally occurring volcanic eruptions can produce large amounts of gases which contain sulfur. These gases accumulate in the atmosphere in the same way as man-made sulphuroxides.
Sorry, but after that I don't know.
Explanation:
Answer:
D. The observable physical or biochemical traits of an organism.
Explanation: