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Sauron [17]
4 years ago
12

A simplified model of the human blood-type system has four blood types: a, b,ab and o. thereare two antigens, anti-a and anti-b.

anti-a reacts with blood type a and ab, anti-breactswith b and ab.for a given person, the probability of type a blood is 0.34, type b is 0.12 and type o is 0.5.find theprobability that anti-b will react to this person's blood
Biology
1 answer:
Kay [80]4 years ago
8 0
First calculate the probability of type AB, which is the remainder after subtracting types A, B and O.

P(AB) = 1-(0.34+0.12+0.5) = 1-0.96 = 0.04

Anti-b will react with types B and AB, so 
P(reaction) = P(B)+P(AB) = 0.12 +  0.04 = 0.16

Answer: For this person, the probability of reaction with anti-b is 0.16
You might be interested in
Naturally occurring solid mixture of one or more minerals and organic matter
alina1380 [7]

The naturally occurring solid mixture of one or more minerals and organic matter is known as a Rock.

A rock is a naturally occurring substances that is a solid mixture of one or more minerals together with organic matter.

<h2>Further Explanation;</h2>
  • Rocks are classified based on the chemical composition, texture and the way they are formed.  One type of rock may change from one form to another through a rock cycle.
  • Rock cycle is the process through each various rocks change from one form to another, normally an interchange between the three major types of rocks.

There are three major classification of rocks:

<h3>Sedimentary rocks </h3>
  • Sedimentary rocks are types of rocks that are formed through accumulation of sediments at low temperatures in tectonic layers and sinks. These sediments includes; pebbles, shells, sand and other material fragments.  
  • The sediments accumulates in layers and then harden into rocks over a period of time.
  • Examples of sedimentary rocks include; limestone and conglomerate
<h3>Metamorphic rocks</h3>
  • These are types of rocks that are formed as a result of changes that occurs due to intense heat and pressure under the surface of the earth. They result from action of heat and pressure on other rocks that pre-existed.
  • These types of rocks are characterized by shiny crystals, ribbon-like layers among other features.
  • Examples of metamorphic rocks are marble and gneiss

<h3>Igneous rocks </h3>
  • These are types of rocks that are formed as a result hardening and cooling of magma from volcanic eruptions. Magma may cool inside the earth or when on the surface of the earth as a result of volcanic eruptions. The lava from this eruptions cools and hardens to form metamorphic rocks.
  • Igneous rocks are glass-like and shiny with no crystals. They may also have tiny spaces and holes due to gas bubbles trapped during the cooling process.
  • Examples of igneous rocks include obsidian and basalt.
  • The three types of rocks may be further classified in terms of chemical composition, texture and formation.

Key words: Rocks, types of rocks, chemical composition

<h3>Learn more about;</h3>
  1. Rocks and rock types; https://brainly.in/question/5987245
  2. sedimentary rocks; https://brainly.in/question/3259075
  3. igneous rocks; https://brainly.in/question/272012
  4. metamorphic rocks; https://brainly.in/question/1206219

Level; High school

Subject: Geography

Topic:  Rocks

sub-topic: classification of rocks

4 0
3 years ago
Enchanted Rock State Natural Area is located in Central Texas. Enchanted Rock is a dome of granite. The area contains four easil
pav-90 [236]

Answer:

D) Granite rock

Explanation:

Enchanted Rock is a dome of granite, so you would pick this answer choice.

I am joyous to assist you anytime.

8 0
3 years ago
The head of a giraffe is 2.0 m above its heart and the density of the blood is 1.05 103 kg/m3. what is the difference in pressur
erastovalidia [21]
The giraffe head is higher than its heart so the blood pressure in the head must be lower than in the heart. The pressure is directly related to the density, gravity, and the height. The calculation would be:

<span>P = ρ*g*h 
</span>P= 1.05* 10^3 kg/m3 * 9.8m/s2 * 2m= <span>20 580 pascals= 20.58 kpa</span>
8 0
3 years ago
Which two gases is the sun mostly made of?
zzz [600]
Hydrogen and nitrogen
4 0
3 years ago
Which of the following human activities does NOT release carbon dioxide into the atmosphere?
NISA [10]
The Fish does not give off Carbon Dioxide
4 0
3 years ago
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