You are studying a variety of pea plant that has either red flowers or white flowers. When you cross true-breeding red-flowering plants with true-breeding white-flowering plants, you get all red-flowering plants in the F1 generation. If you then allow the F1 plants to self-ferilize, you observe that 75% of the F2 plants are red-flowering plants, while 25% of the F2 plants are white-flowering plants. Next you make 640 different monohybrid crosses and decide to analyze only the first 8 plants produced from each of these crosses (i. e. a total of 5120 progeny plants total). How many of these crosses would be expected to produce 6 red plants and 2 white plants?

199 or 200

Explanation:

The computation of the number of these crosses is shown below:

P (red) = 75% = a

P (white) = 25% = b

Now determine the probability of 6 red + 2 white and then multiplied it by 640

Now use the binomial theorem

now the required probability is

= 28 × (0.75)^6 × (0.25)^2 × 640

= 199.25

= 199 or 200

hence, the number of corsses is 200

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).