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A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity.:Glossary The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life.
What is a gene?
A: a locus (or region) of DNA that encodes a functional RNA or protein product

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The Earth of the early Archean (4,000 to 2,500 million years ago) may have had a different tectonic style. During this time, the Earth's crust cooled enough that rocks and continental plates began to form. Some scientists think because the Earth was hotter, that plate tectonic activity was more vigorous than it is today, resulting in a much greater rate of recycling of crustal material. This may have prevented cratonisation and continent formation until the mantle cooled and convection slowed down. Others argue that the subcontinental lithospheric mantle is too buoyant to subduct and that the lack of Archean rocks is a function of erosion and subsequent tectonic events.
During what period did tectonic activity become like it is today?
A: unanswerable

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In the 21st century, these trends have continued, and several new approaches have come into prominence, including multielectrode recording, which allows the activity of many brain cells to be recorded all at the same time; genetic engineering, which allows molecular components of the brain to be altered experimentally; genomics, which allows variations in brain structure to be correlated with variations in DNA properties and neuroimaging.
Genetic engineering allows what?
A: molecular components of the brain to be altered experimentally;

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In December 2015, West released a song titled "Facts". He announced in January 2016 on Twitter that SWISH would be released on February 11, after releasing new song "Real Friends" and a snippet of "No More Parties in L.A." with Kendrick Lamar. This also revived the GOOD Fridays initiative in which Kanye releases new singles every Friday. On January 26, 2016, West revealed he had renamed the album from SWISH to Waves, and also announced the premier of his Yeezy Season 3 clothing line at Madison Square Garden. In early 2016, several weeks prior to the release of his new album, West became embroiled in a short-lived social media altercation with rapper Wiz Khalifa on Twitter that eventually involved their mutual ex-partner, Amber Rose, who protested to West's mention of her and Khalifa's child. The feud involved allegations by Rose concerning her sexual relationship with West, and received significant media attention. As of February 2, 2016, West and Khalifa had reconciled. Several days ahead of the album's release, West again changed the title, this time to The Life of Pablo. On February 11, West premiered the album at Madison Square Garden as part of the presentation of his Yeezy Season 3 clothing line. Following the preview, West announced that he would be modifying the track list once more before its release to the public, and further delayed its release to finalize the recording of the track "Waves" at the behest of co-writer Chance the Rapper. He released the album exclusively on Tidal on 14 February 2016 following a performance on SNL.
What song  by West was debuted in December 2015?
A:
"Facts"