Answer:
- 100% of the girls are expected to be normal, X+X+ and X+X-
- 50% of the boys are expected to be normal, X+Y
- 50% of the boys are expected to be hemophilic, X-Y
- 75% of the whole offspring normal (X+X+, X+X-, X+Y)
- 25% of the whole offspring hemophilic (X-Y)
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Well, you should think about evaporation, condensation, and precipitation! If you have anymore questions, feel free to ask!
Answer:
Unlike poles of a magnet attract each other.
Hope it will help :)❤
Answer:
Lightly pigmented people tend to be at higher risk of vitamin D deficiency
Explanation:
BACKGROUND KNOWLEDGE:
Human skin is the largest organ of the body which makes boundary line between environment and internal conditions. Human skin cell produces pigment called melanin when ever it is subjected to Sun. More the melanin pigment produced more will be the skin darkens. Ultraviolet (UV) radiations also come from Sun and responsible for more pigmentation.
ANSWER EXPLANATION:
According to the question darkly pigmentation only occurs when their is high level of UV radiations. High level of UV radiations are also responsible for Vitamin D production.
People with lightly pigmented means that there environment has low level of UV radiations which are the requirement of Vitamin D production. Hence due to low UV radiations peoples with light pigmentation's are also be at higher risk of vitamin D deficiency
False. That question doesn't really make sense also but it should still be false given the context.