Answer:
c) symbiotic
Explanation:
-There is a symbiotic relationship between the legumes which contains root nodules and Rhizobium bacteria.
-Rhizobia live in the soil.
-When there is limited soil nitrogen, legumes in symbiotic relationship release flavanoids which sends signal to rhizobia that the plant needs symbiotic bacteria.
-Rhizobia produces ammonia from the atmospheric nitrogen and assists the plant's growth.
Answer:
By checking the proportion of those affected by the trait in relation to gender within the population of the offspring
Explanation:
If a trait is sex linked, such trait will be found more in the male sex compared to the female sex within the population.
The male has XY chromosome and as such only needs a copy of the affected allele in order to be affected for the trait. A female has XX chromosome and as such needs two copies of the affected alleles in order to be affected for the trait.
Hence, the proportion of affected male always outweigh the proportion of affected female in a population as far as sex-linked trait is concerned.
<em>Consequently, a scientist might be able to determine whether a trait is sex-linked by observing the proportion of male to female affected by the trait within the offspring's population.</em>
Sterile powdered agar with nutrients can be mixed with water, heated and then poured into empty petri plates or ready-to-use dishes can be purchased. The undigestible agar is a gelatin-like substance with a semi solid surface on which the bacteria can grow while they consume the added nutrients (like sheep's blood).
emotions Are carried out by the limbic system, which is located in the temporal lobe.
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