Answer:
E. bu cv+
Explanation:
Given, that bu+ and cv+ are dominant alleles whereas bu and cv are recessive alleles of the respective genes. In repulsion, the chromosome has one dominant and one recessive allele of the linked genes. According to it, if the German cockroach has bu+bu cv+cv genotype, it should be present in bu+cv/bucv+ arrangement. Thus the parental gametes from this genotype would be bu+cv and bucv+. Recombinant gametes will be bucv and bu+cv+.
Since parental gametes are produced more in number than recombinant gametes in linkage, bu+cv and bucv+ will be the most common gametes. Hence, out of the given options bucv+ set of genes will be present in the most common gametes produced by this cockroach.
Correct answer: D) From bacteria living in their roots
Nitrogen is an essential plant nutrients, but it is metabolically unavailable to higher plants and animals. It is available to some species of microorganism by biological nitrogen fixation in which nitrogen is converted to ammonia with the help of enzyme dinitrogenase.
The process of breaking apart the two atoms in a nitrogen molecule is called nitrogen fixation. Plant obtain the nitrogen they need from the soil which is already fixed by the bacteria and archae.
Example: <em>Azobacter</em><em>,</em> Nostac
Answer:
solar i think because isn't the ozone is like talking about space im not sure if im right
Trees can be made again . Water is a natural resource fuel is too . Wind