Answer:
10 chromosomes/sister chromatids
Explanation:
Prophase is the first stage of cell division (mitosis). Prior to the cell entering the actual division stage, it undergoes a phase where it prepares its content and most importantly undergo the duplication of its genetic material (DNA). This DNA are found as chromosomes. It undergoes replication of its DNA in the S-phase of interphase stage.
Since Arabidopsis thaliana has 10 chromosomes, and each chromosome holds one DNA molecule, 10 molecules of DNA will be present in the mustard plant's genome. These 10 molecules of DNA will be replicated on another copy of chromosome which is identical to the template. This chromosomes are called SISTER chromatids i.e. replicated chromosome. Each sister chromatids are held together at the centromere and are considered one individual chromosome until they separate during anaphase stage.
Hence, at the Prophase stage, before separation, each sister chromatid (replicated chromosome) is considered as one chromosome. Thus, in the mustard plant with 10 chromosomes, it will possess 10 sister chromatids or chromosomes at the Prophase stage.
N.B: When sister chromatids separate during anaphase stage, they will be regarded as individual chromosomes.
Acid rain, if I understand the question correctly.
I think the best answer is D. It is thought that advances such as agriculture, literacy, and urbanization have not been accompanied by additional increases in brain size because the physiological cost of a bigger brain exceeds its benefit. The brain requires a lot of nutrients to function. Having a bigger brain would cost a lot rather than benefiting from it.
we need a graph to do this can u provide a picture?
<h2><u>Answer:</u></h2>
Love Canal. In 1978, Love Canal situated close Niagara Falls in upstate New York, was a pleasant small average workers enclave with many houses and a school. It coincidentally sat on 21,000 tons of lethal modern waste that had been covered underground during the 1940s and '50s by a neighborhood company.
The waterway families didn't realize that they were being presented to harmful synthetic substances, nor were they mindful that concoction squanders were being dumped in our streams, soil, and air. Love Canal stirred a network to the disagreeableness and appalling acknowledgment of how lethal squanders influence our lives, and pulverize our condition.
