Color blindness is a recessive x-linked trait in humans. In a family where the mother is color-blind, and the father is normal, the probability of their having a color-blind son is 100%.
Color blindness is a recessive x chromosome liked recessive disease which is more prone in males than in females. As the mother is color-blind she has both the alleles of colorblindness while the father is normal with both x chromosome and y chromosome normal.
So if the parents have a boy, he will always receive an x chromosome with colorblindness gene from the mother and a normal y chromosome from the father always. Thus, the probability of having a colorblind boy will be 100%.
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Answer:
Molecular evidence
Explanation:
Earlier archaea were considered as bacteria because they show some similarities with bacteria like binary fission as mode of reproduction, lack of a nucleus, etc.
Later Carl Woese separated bacteria in a different domain and divide prokaryote into two domains called bacteria and archaea. He separated archaea from bacteria on molecules evidence.
He compaired rRNA sequence between bacteria and archaea and observed that they both differ in rRNA sequence which allowed him to make a separate domain for archaea.
Answer: Option A.
Cause clot dissolution to proceed faster.
Explanation:
Plasminogen activator is a substance that activates plasminogen to plasmin. Plasminogen activator is a serine proteases which catalyze the activation of plasminogen. The damaged blood tissue releases tissue plasminogen. The plasmin is important to break fibrin polymers that is formed during clotting of the blood. Increased plasminogen levels cause blood clots to dissolve faster.
The cycle of heating, rising, cooling and sinking is called a convection current. These currents are caused by the very hot material at the deepest part of the mantle rising, then cooling, sinking again and then heating, rising and repeating the cycle over and over.
Answer:
The following are some pros and cons for badger control to stop bovine tuberculosis
Explanation:
Pros
1. culling showed significant decrease the occurrence of the disease in herds
2. The reduction in disease has been great economic help for farmers as the treatment is very expensive if the cows are tested positive.
cons
1. disrupted the ecosystem by targeting and killing badgers.
2. The policies and control methods are not cost efficient. they are high maintenance.
