Answer:
The beneficial allele will rise faster if it is dominant
Explanation:
A dominant allele is expressed even if there is only one (heterozygous) allele present in an individual, whereas a recessive allele requires 2 copies (homozygous). If the allele confers fitness, it is much more likely to be acted on by natural selection if the allele is dominant, as the carrier will actually possess the associated phenotype.
For a recessive allele to be confer fitness, an individual would need to be homozygous. Even if two individuals both heterozygous for this rare allele had children, those children would have only a 1:4 chance of being homozygous, meaning its beneficial effects would rarely be seen and it would take much longer to rise in frequency.
Keratinized (containing keratin), stratified (2 or more layers) squamous (flattened) type of epithelium
Genotype of my snowman:
vv WW TT ss ee Cc Ff JJ Bb LL HH Pp
Phenotype:
Very tall
Wide
3 snowballs
no scarf
no earmuffs
coal eyes
2 buttons
joyful
two branches
Long nose
Top hat
pipe
Edwin Hubble's observation of galaxies revealed that the light received from them were red-shifted, indicating that they are moving away from us. And the seemingly farther away a galaxy was, the greater its red-shift. This can only be explained if a all the galaxies were expanding outward. Determining the exact distances to the other galaxies was a problem, however, until the Hubble space telescope. It had high enough resolution to identify Cepheid variable stars in other galaxies, and accurately determine their distance, and therefore the expansion rate of the universe. Hope this helps!!