Explanation:
a) The allele for hemophilia is Xh and that for normal is XH.
Crossing a hemophiliac male, Xh Y, with a normal female XH XH,
- XH Xh, normal carrier female
- XH Xh, normal carrier female
- XH Y, normal male
- XH Y, normal male
b) Both parents are normal and children still having hemophilia means that the mother is a carrier.
Let's see how it'll work out if we cross a normal male with a carrier female,
XH Y × XH Xh
- XH XH, normal female
- XH Xh, carrier female
- XH Y, normal male
- Xh Y, hemophiliac male
This means that the possibility of a female being normal, a carrier or not, is 100%. The possibility of a male being normal is 50% and the possibility of him being a hemophiliac is also 50%.
Thus it's possible that all 7 sons get hemophilia as each male baby has a 50% chance of having the genotype Xh Y. And it makes sense that all the females are normal. Those females could have the genotypes XH XH, or XH Xh (carriers).
Both have increased gradually over the past 150 years.
- Global warming is a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect.
- Global warming is the increase of the Earth's average surface temperature due to accumualtion of greenhouse gases in the atmosphere. Climate change is a broader term that refers to long-term changes in climate, including average temperature and precipitation.
- Effects of global warming are rising sea level Increased temperature, Habitat damage and species affected Changes in water supply
- Burning of fossil fuels, pollution from coal, natural gas, and oil are reason of global warming happening
To know more about global warming visit :
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Answer:
Power your home with renewable energy. AND . Reducing the use of coal, oil and natural gas is clearly important, but it's not the only way to bring the carbon cycle into better balance
Explanation:
Another option is to speed up the rate at which CO2 is removed from the atmosphere and then sequester the resulting carbon, thereby balancing out the CO2 from fuel combustion.
Answer:
No
Explanation:
genes are part of your own dna you don't run out of dna
