Answer:
The correct answer would be - Analyze the results and change the experimental methods to retest the hypotheses in a different way.
Explanation:
In a scientific investigation or experiment, if there is an unexpected result during testing a hypothesis. A Scientist must analyze the procedure and result to find the possible explanation or errors that led to a particular result.
After analyzing and finding what must have happened scientists need to do changes in the experiment setting or method and retest the hypothesis in a different way to a better understanding of the topic.
Tetraploidy may result from
(c)lack of cytokinesis in mitosis and
(d) nondisjunction in mitosis in the early embryo.
<h3>What exactly are tetraploidy and triploidy? Tetraploids are they fertile?</h3>
Triploidy happens quite frequently, whereas tetraploidy is an uncommon chromosomal anomaly. In the first trimester, the majority of triploid embryos miscarry. The conceptus has a triploid karyotype in about 20% of first-trimester spontaneous abortions, according to the research. Chromosome duplication in a somatic cell of an early cleavage-stage embryo, a postzygotic event, is the most likely cause of tetraploidy. A rare diploid ovum may be fertilised by a similarly rare unreduced sperm.
Although the tetraploid form on the left is self-fertile, crosses with the parent diploid form result in sterility. It might then be broadly regarded as a new species, or at the very least the building blocks for the eventual emergence of a new species.
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In both animals and plants, cells produce new cells by mitosis - but they split differently. A cleavage farrow forms in the animal cell and it splits. For the plant cell, a cell plate forms and then the cell splits.
Answer:
A. are deciduous
Explanation:
Ginkgo trees are broadleaf trees or deciduous trees.
These useless leg bones are vestigial structures. It was believed that the only vertebrates existing were water creatures. Over time, they developed hips and legs as they eventually walked out of the water which later evolved to land creatures. Some of these are mammals, and they later moved back to the water. Biologists believe this to have occurred 50 million years ago.