8. In tomatoes, there are two alleles that affect stem color, one purple (T) and one green (t). The following crosses are performed with these results
Parental Phenotype Offspring Phenotypes
Cross 1- Purple X Green 422 purple: 417 green
Cross 2-purple x purple 426 purple, 135 green
Cross 3- purple x green 953 purple, Ogreen
Cross 4- purple x green 404 purple, 387 green
What is the genotype of the purple parent in cross number 3?
A. TT
B. tt
C. Tt
D. T?

Scenario #2 in 2001, a population of 2,500 poison dart frogs lived in the amazon rain forest. due to increased deforestation, the population dwindled to 25 frogs in 2019. new government regulations were enacted in 2022, successfully putting an end to the deforestation of the amazon rain forest. once deforestation was stopped, the poison dart frog population was able to recover. by 2050, the population reached 8,000 frogs, of that population, 20 are homozygous recessive for being spotted (ss genotype). q2- ? q- p- p2- 2pq-

What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?