Problem: Please answer a question about the following article about Gene:
The relationship between genes can be measured by comparing the sequence alignment of their DNA.:7.6 The degree of sequence similarity between homologous genes is called conserved sequence. Most changes to a gene's sequence do not affect its function and so genes accumulate mutations over time by neutral molecular evolution. Additionally, any selection on a gene will cause its sequence to diverge at a different rate. Genes under stabilizing selection are constrained and so change more slowly whereas genes under directional selection change sequence more rapidly. The sequence differences between genes can be used for phylogenetic analyses to study how those genes have evolved and how the organisms they come from are related.
Under what type of selection are genes constrained so they change more slowly?
A: stabilizing
Problem: Please answer a question about the following article about Tucson, Arizona:
At the University of Arizona, where records have been kept since 1894, the record maximum temperature was 115 F (46 C) on June 19, 1960, and July 28, 1995, and the record minimum temperature was 6 F (14 C) on January 7, 1913. There are an average of 150.1 days annually with highs of 90 F (32 C) or higher and an average of 26.4 days with lows reaching or below the freezing mark. Average annual precipitation is 11.15 in (283 mm). There is an average of 49 days with measurable precipitation. The wettest year was 1905 with 24.17 in (614 mm) and the driest year was 1924 with 5.07 in (129 mm). The most precipitation in one month was 7.56 in (192 mm) in July 1984. The most precipitation in 24 hours was 4.16 in (106 mm) on October 1, 1983. Annual snowfall averages 0.7 in (1.8 cm). The most snow in one year was 7.2 in (18 cm) in 1987. The most snow in one month was 6.0 in (15 cm) in January 1898 and March 1922.
What was Tucson's record low?
A: 6 F (14 C)
Problem: Please answer a question about the following article about Catalan language:
During much of its history, and especially during the Francoist dictatorship (19391975), the Catalan language has often been degraded as a mere dialect of Spanish. This view, based on political and ideological considerations, has no linguistic validity. Spanish and Catalan have important differences in their sound systems, lexicon, and grammatical features, placing the language in a number of respects closer to Occitan (and French).
What has Catalan often been considered?
A: dialect of Spanish
Problem: Please answer a question about the following article about Josip Broz Tito:
Tito also developed warm relations with Burma under U Nu, travelling to the country in 1955 and again in 1959, though he didn't receive the same treatment in 1959 from the new leader, Ne Win.
What country did U Nu lead?
A:
Burma