In pea plants, the allele for purple flowers (p) is dominant to the allele for white flowers (p). in a cross between a purple-flowered plant and a white-flowered plant, all 73 of the offspring plants had purple flowers. which cross would provide such results?

A cross between a homozygous purple flower (PP) and homozygous white flower (pp)

Explanation:

This cross involves a single gene coding for flower colour in pea plants. One allele is responsible for purple color (P) is dominant over another allele responsible for white colour (p) i.e. P allele will mask the expression of p allele.

According to the question, a cross between a purple-flowered plant and a white-flowered plant produced an all purple-flowered offsprings. This implies that both parents were homozygous for the two traits i.e. they contained identical alleles for the flower colour gene.

The purple color plant has a genotype: PP while the white color plant has a genotype: pp, to produce F1 offsprings will genotype Pp. All 73 offsprings produced in this cross and heterozygous i.e. a combination of purple and white alleles.

answer; atp and nadph;

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.