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nexus9112 [7]
3 years ago
10

Jenny wants to determine if a new brand name washing machine is better than here old detergent. she washes ten dirty t-shirts wi

th the new washing detergent. after washing, she thinks they are cleaner using the new detergent. what can she do to be sure the new washing detergent works better than the old detergent?
the hint is "Consider what Jenny is comparing the group treatment against."
Biology
1 answer:
GenaCL600 [577]3 years ago
8 0
I believe the answer is quite simple.

She must've compared the clothing washed with the new detergent with the old one. Jenny must've looked for stains, odour, etc. These would help determine whether or not the new detergent worked better. 

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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.

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