science
Grade-12
Easy
Question
How many alleles does a person carry for a trait?
- 1
- 2
- 3
- 4
Hint:
2 allele
The correct answer is: 2
- The two alleles in a gene pair are inherited, one from each parent.
- Therefore, a person carries 2 alleles for a trait.
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Genes code for________.
Genes code for________.
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Is the following genotype homozygous or heterozygous?
TT
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Jasmine carried out an experiment. She placed two bowls of sand and water in the sunlight. She took the temperatures after an hour. She then took both the bowls into her home and placed them in an area with no light. She took another temperature after an hour and conducted the following observations:
Sand |
Water |
|
Before placing the bowls in the sunlight |
370C |
300C |
After keeping the bowls in the sunlight for one hour |
370C |
320C |
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Sand |
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|
Before placing the bowls in the sunlight |
370C |
300C |
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1. |
B. Rain gauge |
2. |
C. Wind vane |
3. |
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Statement B: Rain is defined as moving air.
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