Answer: the answer should be E and A
Explanation:
103 is the correct answer
The USDA Animal Welfare Act takes precedence over guidelines produced by the Public Health Service, Department of Veterans Affairs and other government agencies.
The United States Department of Agriculture (USDA) has a specialized unit, called USDA Animal Care, which administers the Animal Welfare Act (AWA). AWA sets the minimum standards of care and husbandry for animals used for commercial or research purposes and public exhibitions.
The answer would be transitional forms like Archaeopteryx make
available DNA confirmation that demonstrates how organisms are related. Transitional
fossils establish the middle forms that happened over the evolutionary
trail taken by a single genus. A case in point of a transitional fossil is
archaeopteryx, which relates the evolution of dinosaurs (from jaws and claws)
to birds (feathers).
Answer:
Non-coding DNA regions play important roles in regulating transcriptional activity by encoding different types of non-coding RNAs (ncRNAs), acting as scaffold attachment regions, acting as enhancer specific regions, etc.
Explanation:
Historically, it had been believed that non-coding DNA sequences were 'junk DNA' since they don't encode for proteins (beyond the sequences that are transcribed into functional non-coding RNAs, i.e., transfer RNA and ribosomal RNA). However, in the last years, it has been shown that non-coding DNA sequences play critical roles in regulating gene expression and genome function. For example, evolutionary conserved non-coding RNAs (ncRNAs) with regulatory roles on gene expression such as, for example, long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) have been mapped in non-coding DNA sequences, thereby evidencing the functional significance of these regions. In consequence, the conservative nature of certain non-coding DNA sequences evidence that mutations in such regions may have significant deleterious effects, and thereby they could have a negative impact on the fitness of the individual.
