Biology, 31.03.2020 00:02 shealene7

Which observation of dihybrid crosses led to Mendel’s law of independent assortment? * 1 point Similar traits are always inherited in pairs. Different traits are inherited separately. Recessive traits are inherited randomly. Dominant traits are inherited together.

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Answer from: gujaratif932

Different traits are inherited separately.

Explanation:

This question can be answered using Mendel's second law, known as the law of independent segregation.

To create this law, Mendel used two types of peas: yellow and smooth seed peas (VVRR) and green and rough seed peas (vvrr).

Mendel crossed these two peas resulting in a totally heterozygous offspring (VvRr), that is, the offspring (F1) generated by crossing two homozygous peas generated a completely heterozygous population, which Mendel called a dihybrid.

Mendel performed this crossing to learn how the transmission of traits was passed from parents to offspring. To do this, he should know whether the "V" and "R" alleles were inherited together or separately, independently.

It was at that moment that Mendel crossed the dihybrid individuals and realized that offspring (F2) had a phenotypic ratio equal to 9: 3: 3: 1. He tested several different types of peas and realized that the F2 generation always had a 9: 3: 3: 1 phenotypic ratio. With that, he concluded that the alleles were inherited independently, since the F2 generation had many variations and this would not happen if the characteristics were inherited together.

Mendel's experiment with dihybrid crosses allowed him to conclude that the different characteristics are inherited separately.

Answer from: Quest

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

Answer from: Quest

c is the correct answer hope this !

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Which observation of dihybrid crosses led to Mendel’s law of independent assortment? * 1 point Simil...

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