Answer:
C. Fi 1:0, F2 3:1
Explanation:
Firstly, Mendel's law of segregation states that the alleles of a gene will randomly separate into gametes during gamete formation. In this case involving a single trait, hence, a single gene. Mendel crossed two purebreeding plants i.e. homozygous plants that produced different phenotypes for the same gene. He obtained his offsprings which he called F1 offsprings. He realized that all the F1 offsprings expressed only one phenotype. For example, when he crossed homozygous tall (TT) and short (tt) plants, he got F1 offsprings that were all tall.
He then self-crossed these F1 offsprings to produce a F2 offsprings that had a phenotypic ratio of 3:1 i.e. 3tall, 1short plant. He concluded that the alleles of the single gene had segregated into the gametes but one allele was capable of masking the expression of another, as seen in the heterozygous F1 offsprings that were all tall (Tt).
Hence, he obtained a 1:O ratio for his F1 offsprings then a 3:1 ratio for his F2 offsprings.
Lungs, claws/nails, fur, and mammary glands. The rat is most closely related to the dove.
When the body moves the muscles supplies the effort or input force. An effort force is a force that is used to move objects over a distance. It is the force that is used to get work done. The output force is the results of the input force or what one has accomplished. The force that moves the bones comes from the muscles. The energy that the muscles use to produce the force and move it through a distance comes from the food one eats.
The solar panels/cells take in the sun's energy by being exposed to sunlight. Afterwards, this is then used to generate electricity. Similarly, the leaves of a plant act as the solar cells or panels, and use it to absorb the energy of the sun. Along with carbon dioxide, this is used to generate oxygen.
