Answer: I believe you need to examine the layers, the color, texture.
Answer: True
Explanation:
When an allele that is dominate and favoured in an individual carrying are heterozygous and the large fitness difference between heterozygous and the homozygotes not in use results to a rapid change in the frequencies of the allele.
In prophase 1:
Chromosomes become visible, crossing-over occurs, the nucleolus disappears, the meiotic spindle forms, and the nuclear envelope disappears.
In metaphase 1:
The pairs of chromosomes (bivalents) become arranged on the metaphase plate and are attached to the now fully formed meiotic spindle. The centrioles are at opposite poles of the cell.