Which letters can be used to model mendel's cross o true-breeding tall planets with true-breeding in a punnett square

Ans.

Mendel performed various experiments on garden pea plants to study inheritance of characters. He studied different traits of pea plants, such as height of plants, color of flower, and sees shape. For plant height, Mendel used capital 'T' letter to denote allele for tall character, while he used small 't' letter to denote allele for dwarf character.  According to Mendel, the true-breeding or homogeneous. plants show both the same allele for a trait.  

Thus, the letters 'TT' and 'tt' can be used for Mendel's experiment that shows cross between true-breeding tall plants and short plants in a Punnett square, respectively.  

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TT x tt

Explanation:

"T" is the dominant trait while "t" is the recessive trait. The tall plants (in this example) are more dominant than the small plants. When combined in a Prunnett square, the results would look like: TT, Tt, Tt, tt.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave