<span>The footprints of a dinosaur are an example of what type of fossil?
D. Trace Fossil
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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.
An endangered species means it is a kind of organism that is near extinction
or completely wiped from the face of earth
plz mark brainliest
La mayoría de los biólogos evolutivos distinguen una especie de otra en función de la reproductividad: los miembros de diferentes especies no pueden aparearse o no pueden aparearse entre sí o, si lo hacen, la descendencia resultante suele ser estéril, inviable o sufrir algún otro tipo de aptitud reducida. O Un individuo es un organismo y también es un tipo de organismo (por ejemplo, humano, gato, alce, palmera, ballena gris, tenia o vaca en nuestro ejemplo). El tipo de organismo se conoce como especie. ... Incluso si te refieres a un solo tipo de organismo, una especie, es una especie; no existe tal cosa como una especie.
