Genetic variation is a measure of the genetic differences that exist within a population. Genetic variation is essential for natural selection because natural selection can only increase or decrease frequency of alleles that already exist in the population. Genetic variation is caused by: mutation.
If a woman is a carrier for the color-blind recessive allele and her husband has normal vision then there will be 50% chance that a son will be color-blind
If you're color blind, you see colors differently from the majority of people. Color blindness frequently makes it challenging to distinguish between particular hues. Color blindness typically runs in families. Although there is no cure, specific eyewear such as contact lenses can help.
The only form that truly embodies the phrase "color blind" is achromatopsia, sometimes known as "total color blindness." Achromatopsia is a condition in which a person can only perceive the world in shades of grey, black, and white. Red-detecting cone cells or pigments are absent in those with protanopia color blindness. They consequently don't perceive red or orange colors as well.
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I THINK humid but I'm not completely sure
Answer: The correct answer is 3) A segment of a DNA molecule that contains the instructions for producing a trait in an organism.
Gene is a segment of DNA molecule that contains instructions ( in the form of nucleotide sequences), which are required for producing a specific trait ( characteristic) of an organism.
For this, gene is first transcribed into mRNA ( messenger RNA), which is then translated to produce a particular protein. The protein thus formed gives a specific characteristic to the organism.
Thus, option 3) is the best description for a gene.
The right answer for the question that is being asked and shown above is that: "Secondary Succession" Assuming this land was once a farmer’s field with previously established vegetation, the process that does this photograph best represent is secondary succession.
