You're making a hypothesis for the Redi and Pasteur experiments?
Redi's experiment regarded maggots in jars with meat. And Pasteur's experiments involved nutrient broth culturing bacteria or not.
So:
If the jars containing meat are covered, then maggots will not grow or hatch inside because life cannot form without life and the covers would block flies.
If the nutrient broth is boiled before being sealed, then the uncovered broth will breed bacteria but the sealed broth will not because the bacteria have all been killed from heat and cannot reproduce.
or something along those lines. Eh.
Answer:
The correct answer is option D) Albino = recessive, black = dominant.
Explanation:
- According to Mendel's Law of Dominance, of the two alleles which represent a gene, one can express itself even when in the presence of the other allele, that is in heterozygous state. This is called the Dominant allele. The other allele can express itself only in homozygous state. This is called the Recessive Allele.
- When a black guinea pig is crossed with an albino guinea pig, all black offspring (5) are obtained in the F1 generation.
- This indicates that the Black colour is dominant over the albino colour, as it masks the expressions of the albino phenotype.
- This also indicates that the genotype of the parent black guinea pig is homozygous dominant, as if it would have been heterozygous dominant then in the F1 generation there was a chance of formation of both black and albino offspring in 1 : 1 ratio.
- When a black guinea pig from the F1 generation is crossed with the albino guinea pig it gives both black (4) and albino (3) guinea pigs, roughly in the 1 : 1 ratio.
- This indicates that black guinea pig from the F1 generation was heterozygous dominant. This is why the recessive allele giving rise to the albino phenotype could express itself in the second cross.
- The second cross between F1 offspring and recessive parent is called the Test Cross.
Answer:
There would be an overabundance of organic waste.
I think the correct answer from the choices listed above is option B. It would be melting of the ice caps and increased carbon dioxide levels in the atmosphere that would <span>represent the least immediate threat to ocean ecosystems. The effects are seen as the years goes by than seeing the effect immediately. Hope this answers the question.</span>
