Explanation:
The phase of Prophase I of meiosis is very long and divided into 5 subphases: Leptotene, Zygote, Pachytene, Diplotene, and Diakinesis. During a phase of the Diplotene, the degree of condensation is high, which allows individualizing the sister- chromatids that remain attached by the cohesins. The synaptonemal complex disintegrates, and from the centromeres begins a repulsion between homologous chromosomes, which remain associated only with the places where they occur as permutations.
These sites are called chiasmas (Greek, crossed) because they show the crossover of homologous chromatids. Chiasmas represent the cytological finding of the occurrence of permutation. The presence of at least one bivalent chiasm is essential to ensure the correct segregation of the homologous chromosomes in anaphase I.
Well technically, none of these answers are right. But the best answer in the choices would be It was an exchange of trade foods. Hope this helps!
<span>Magnesium sulfate is a drug for preeclampsia. This drug can be dangerous as it could cause respiratory paralysis. In this case, the patient shows several symptoms of </span>magnesium sulfate toxicity such as reduced respiratory rate(10 breaths/minute), decreased tendon reflex(deep tendon reflexes of +1) and decreased urine output(<span>20 ml/ hour).
The action that needs to be done in magnesium sulfate toxicity is stopping magnesium infusion and prepare for the antidote, calcium gluconate.</span>
1. True form fossil
2. Trace fossil
3. Mold fossil
Fossils are formed in different ways, but most are formed when a plant or animal dies in a watery environment and is buried in mud and silt.
