Uranium extraction from seawater: Uranium is most often mined from the Earth's crust, but it can also be extracted from seawater, which contains large quantities of uranium<span> (3.3 ppb, or 4.6 trillion kg). Theoretically, that amount would last for 5,700 years using conventional reactors to supply 15 TW of power.</span>
Answer:
C. Two non-functional copies of the retinoblastoma gene.
Answer:
Please see below.
Explanation:
Some alleles have multiple effects in the phenotype. The allele that causes beaks to be deeper likely also causes the beaks to be wider, so both traits are associated and will vary together. Therefore the population will always show a deeper and wider beak or a shorter and narrower beak depending on the environmental cues available that select for either state.
A true-breeding specimen seems to be homozygous, thus, the blue color flowers must exhibit the genotype BB and the yellow ones must have possessed the genotype YY.
In the given case, when one crosses a flower with genotype BB and other with genotype YY, all the offspring will be BY. As in the next generation, all the flowers appear blue, thus, the blue allele must be dominant.
The answer is c
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