Answer and Explanation:
Genomic imprinting is a phenomenon in which expression of the gene depends on whether it is inherited from the male or the female parent. Depending on how the genes are marked, the offspring expresses either the maternally-inherited or the paternally-inherited allele.
An allele can demonstrate different effects depending on whether it was inherited from the male or female parent. In male offspring only one copy of the allele is inherited, and it comes from the female parent. Only male offspring inherit the trait.
The genetic traits are inherited solely from the female parent
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False. <span>The British bacteriologist </span>Almroth Edward Wright<span> first developed an effective typhoid vaccine at the Army Medical School in Netley, Hampshire.
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This type of speciation is called Peripatric Speciation. Peripatric speciation gives rise to daughter species that becomes reproductively isolated. Parent and daughter species are usually adjacent to each other but did not overlap. There are two requirements for this kind of speciation, geographic space and time.
A centriole is a small set of microtubules arranged in a specific way
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.
