No their babies won't look alike.
<h3>Explanation:</h3>
Both the couples mentioned here i.e. Sally - Harry and Emily - Ken are both identical twins. So they have similar pairs of genetic setup. This was possible because they developed from same zygote.
But during gametogenesis, crossing over and independent assortment occurs which brings about variation in genetic setup among the offspring. And it's very less probable that same crossing over will occur between the gametes of these couples. So, their offsprings won't look same.
Answer:
c. Methylated CpG islands is associated with long term gene repression.
Explanation:
The CpG sites or islands is a biological term that describes the genomic regions in which CpG sites occur; a region of DNA, in which cytosine nucleotide is followed by a guanine nucleotide in the linear sequence of bases along its 5' → 3' direction.
The CpG islands is characterized with a high frequency of CpG sites, with at least 200 bp, a GC percentage greater than 50%, and an observed-to-expected CpG ratio greater than 60%.
The existence of CpG islands is also associated with low levels of methylation in that genomic area, which has to do with the regulation or repression of gene expression
Many compounds are used for the benefit of human health/lifestyle, such as silk from silkworms, wool from sheep and so on. Even medicines and drugs are obtained from plants.
1.
I would say individual biodiversity. I have read that there are variations in genes so genetic variation is a biodiversity along with species diversity and ecosystem biodiversity. In fact, genetic diversity is similar to species diversity. Species have their own genetic variation.
2.
True. We are losing biodiversity at a higher rate than ever before.
Answer choices? what are the answer choices