I think the correct answer from the choices listed above is option B. If pink snapdragons of the F1 hybrids (RW) are crossed with red snapdragons of the parent plant (RR), the ratio of flowers produced in 40 offspring would be <span>20 pink flowers, 20 red flowers. This can be proved in by making a Punnett Square.</span>
Homologous structures are structures (body parts/anatomy)
which are similar in different species because the species have common descent.
They may or may not perform the same function. An example of homologous
structures is the forelimb structure shared by cats and whales.
The inversion would suppress recombination.
In Drosophila, the mutations which are recessive are lethal or recessive sterile. Balancer chromosomes are used to hold the deleterious mutations in stable shares as well as to save you recombination with the aid of suppressing.
Chromosomal inversions prevent the recuperation of recombinant chromosomes in ways.
- the crossovers do now not shape within the location of inversion breakpoints, due to the fact synapsis is inhibited.
- unmarried crossovers' inner inversions result in aneuploid gametes that cannot give upward push to normal progeny.
Drosophila is a genus of flies, belonging to the own family Drosophilidae, whose participants are often referred to as "small fruit flies" or (much less regularly) pomace flies, vinegar flies, or wine flies, a connection with the feature of many species to linger around overripe or rotting fruit.
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Sunlight
Water(moisture)
Viable seed
Air