What types of chemical reactions are the following? Column A
1.
Al + + GaP → Ga + AlP

2.
2 Mg + O2 → 2 MgO

3.
MgO + BeSe → BeO + MgSe

4.
CH4 + 2O2 → CO2 + 2H2O

5.
2 NaCl → Na + Cl2

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

In pea plants, the allele for inflated pod seed, i, is dominant over the allele for constricted pod seed, i. the punnett square shows a cross for this trait. which offspring will be homozygous dominant