Answer:
This disorder is caused by a recessive allele, its inheritance is sex-linked.
Explanation:
The disorder affects boys born to unaffected parents, this means that at least one of them has to be a carrier of the allele which causes the disease. So, if the allele was dominant, it would express in parents and sons. But, in this case, only is expressed in sons, so it can´t be dominant. Moreover, this condition has a sex-linked inheritance because it is always seen in boys and never in girls. This happens due to boys only have an X chromosome, so if they inherit the recessive allele of the disease, they will express it. On the other hand, girls have two X chromosomes, so if they inherit one copy of the recessive allele, they will be carriers and they won't be affected.
This disorder is never seen in females because they need to have two copies of the recessive allele. However, to have double copy, they should inherit one copy from their mothers and one copy of their fathers, but boys with the allele are affected and they die in early teens without having progeny. Therefore, a girl can't have a "carrier-father", so they will never have two copies to express the disorder.
It doesn't stay up there for long and there are several different ways that it can get up there. hope this helps:)
Chlorophyll the pigment gives the plant their green color and let's them absorb sunlight more of Chloroplast a part that is cell found in plants that coverts light energy into energy plants which use "Sugar".
If this is wrong let me know and I'll help you the best I can enjoy and have a nice day!
" I believe plants, more specifically vines, grow faster and stronger using thigmotropism"
Answer:
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Explanation:
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