Answer:
1/2
Explanation:
let the alleles of the heterozygous woman without hemophilia be = Xhx
And the alleles of the man with hemophilia be XhY
If both XhY × Xhx; we have:
Xh Y
Xh XhXh XhY
x Xhx xY
XhXh and XhY are affected by the diseases
Xhx is a carrier
xY is normal
∴ the probability(chance) that their first child will have the disease is 2/4 of the total offspring
=1/2
∴ the probability (chance) that their first child will have the disease is 1/2
I think its D but im not sure this question is confusing.
Answer:
• oxygen
• nitrogen
• carbon
Explanation:
Electronegativity is a scale that measures an atom's attraction towards an electron. The more electronegative an atom is, the more it attracts an electron. Electronegativity increases as we go up and from left to right in the periodic table.
Hence, the following elements are considered to have a high level of attraction for surrounding electrons
• oxygen
• nitrogen
• carbon
In medicine, the hygiene hypothesis states that early childhood exposure to particular microorganisms (such as the gut flora and helminth parasites) protects against allergic diseases by contributing to the development of the immune system.
<h3>What is the role of eosinophils in hygiene hypothesis ?</h3>
Eosinophils are multifunctional granulocytes that contribute to initiation and modulation of inflammation.
- Eosinophils are extremely versatile effector cells that damage tissues or modulate the activity of other immune and stromal cells.
<h3>Why does having a parasitic worm help us ?</h3>
This is because parasitic worms have evolved strategies to block parts of the human immune system.
- These parts of the immune system, namely the eosinophils and IgE antibodies, are also the main players in allergies, IBD, and many other inflammatory diseases
Learn more about hygiene hypothesis here:
brainly.com/question/15188231
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