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Reika [66]
3 years ago
9

How does the amount of uranium in zircon tell us how old the crystal is?

Biology
1 answer:
Aleks04 [339]3 years ago
5 0
Uranium- lead which is the oldest & one of the most <span>refined of the </span>radiometric dating<span> schemes</span>
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Hemophilia is a disease that causes uncontrollable bleeding. If a father has it, all of his daughters will be carriers of the di
Viktor [21]

Answer:

Protein is the macromolecule that is involved in how hemophilia is passed from parents to children

Explanation:

Hemophilia A, also called factor VIII (8) deficiency or classic hemophilia, is a genetic disorder caused by missing or defective factor VIII (FVIII), a clotting protein. Although it is passed down from parents to children, about 1/3 of cases found have no previous family history.

7 0
2 years ago
In an individual of genotype aa, where are the a and a alleles physically located? view available hint(s) in an individual of ge
Alex787 [66]

Answer:

One allele is on one chromosome, and the other is in the same position (locus) on the homologous chromosome.

Explanation:

The genotype of an organism refers to the genetic makeup or complete set of genes. The genes control the trait of an organism and exist in an organism in their alternative form called alleles.

Since the alleles are the alternative form of a gene, therefore, they must be present at the same position called a locus.  

These alleles are present on the homologous chromosome in which each homologous chromosome is contributed by each parent. Therefore when the genotype is aa then a and a allele will be present on homologous chromosomes in the same position.

Thus, the selected option is correct.

5 0
3 years ago
Read 2 more answers
When biotic potential is completely
BARSIC [14]

Answer:

Stabalizes

Explanation:

Because it is a balanced environment.

8 0
2 years ago
Someone please help thank you
Svetradugi [14.3K]
I believe it is 4 but I may be wrong :|
8 0
3 years ago
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What characteristic would adapt a fruit for wind dispersal?
Marta_Voda [28]
The fruit should have a seed that's light enough to be carried by the wind. Plants like orchids, dandelions, and cottonwood are plants that have seeds that seem like they have "wings" because of the feathery bristles that they have on top of them. These seeds are lightweight and are more often carried out by the wind for pollination. 
7 0
3 years ago
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