Plants, such as sunflowers, contain specialized receptor cells that respond to light and grow in the direction of a light source. These specialized plant cells exhibit gravitropism.

phototropism.

solartropism.

thigmotropism.

What are the probable phenotypes of their offspring

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.

Draw the structure of dna nucleotide with adenine as nitrogenous base