Answer: disruptive
Explanation:
b. What is the probability that:
(i) The first child that is born will not have moles.
(ii) All of the children will have moles.
(iii) The first two children will have no moles and the last five will have moles.
(iv) Of the 7 children, 4 will have no moles and 3 will have moles
c. Assume this couple now have two children, one with moles and one without moles. What is the probability that the child born without moles is a carrier of the a-allele (ie heterozygous)?
Answer:
a. =
b. i. 0.75
ii. 0.000061
iii. 0.012
iv. 0.17
c. 0.67
Explanation:
a. The expansion of the binomial (p + q)7 would be such that:
=
b. Both couples are heterozygous:
Aa x Aa
AA Aa Aa aa
Since A is dominant over a,
probability of having mole (aa) = 1/4
probability of not having moles = 3/4
Therefore, the probability of the first child not having moles = 3/4 or 0.75
ii. Let the probability of not having mole = p and the probability of having mole = q. From the binomial expansion:
=
Probability that all of the children will have moles =
since p = 3/4 and q = 1/4
= = 0.000061
iii.Probability that the first two children will have no moles and the last five will have moles =
=
= 0.012
iv. Probability that 4 will have no moles and 3 will have moles out of the 7 children =
=
= 0.17
c. Probability that the child born without moles is a carrier of the a-allele = probability of heterozygous.
From the cross in (b), the genotypes of those born without moles are AA and 2Aa. Therefore, the probability of not having moles and be Aa is:
= 2/3 or 0.67
Covalent bonds share electrons between two atoms.
An atom involved in an ionic bond has an equal number of electrons and protons.
Salts are covalently bonded.
The atoms in a molecule of water (H2O) are bonded together with ionic bonds.
The true statement of chemical bonds is covalent bonds share electrons between two atoms.
In conclusion, covalent bonds share electrons between two atoms.
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B. watering the soil
C. adding compost to the soil
D. heating the soil
Answer:
A. and B.
Explanation:
Answer:
A and b
Explanation:
hope to get brainlist :))) (gimme i helped u)
2. respiration by marine animals
3. photosynthesis
4. eating vegetables
5. forest fire
6. fossil fuel formation
Atmosphere Hydrosphere Biosphere Lithosphere
The carbon cycle operates in nature that maintains the carbon composition in nature. The carbon is released into the atmosphere in the form of oxides, hydroxides and then recycle back into the atmosphere.
The carbon can be released into the atmosphere by the respiration of the animals in the form of carbon dioxide. The burning of fossil fuels and wood combustion also releases carbon into the atmosphere.
The decomposition by microbial organisms also releases carbon dioxide in the nature. The main carbon reservoir present in the atmosphere is lime stones in the oceans and in the biomass of the organisms. The carbon can be used up by the plants during the process of photosynthesis.
Therefore, The carbon cycle operates in nature that maintains the carbon composition in nature. The carbon is released into the atmosphere in the form of oxides, hydroxides and then recycle back into the atmosphere.
Learn more about carbon cycle on:
#SPJ5
Answer:
1 2 4
Explanation:
Answer:
global warming is a part of climate change
Explanation:
climate change refers to the way that climate is changing on earth this can be global warming or also cooling