Answer:
Tt Rr WW
Explanation:
Given:
1. tall (T) is dominant to short (t)
2. red flowers (R) is dominant to white flowers (r)
3. wide leaves (W) is dominant to narrow leaves (w)
4. Also, a tall, red, wide-leaved plant is crossed to a short, white, narrow-leaved plant
To find: genotype (with correct arrangement of alleles) of a tall, red, wide-leaved parent
Solution:
Genotype (with correct arrangement of alleles) of a tall, red, wide-leaved parent is Tt Rr WW
It is important because it creates a second copy of DNA that must go into one of the two daughter's cells when a cell divides
Answer:
The correct answer would be - d. With the end of genetic isolation gene flow took place
Explanation:
It is given that people of Troublesome Creek Kentucky were isolated and have a rare recessive allele that results in a blue tone to their skin. However, later these isolated people connected with the people from outside, and due which allow them to intermate. Intermating among populations from isolated and people from outside leads to gene flow.
Methemoglobinemia was present in the isolated population as they had both recessive alleles in their genotype and other hand people from outside might have heterozygous or both dominant allele genotypes that make them free from this disorder.
Due to the intermating and gene flow, the number of heterozygous conditions rises and after many generations slowly methemoglobinemia could have disappeared due to the masked recessive allele.
This happens because everyone has a different set of chromosomes and DNA make creating genetic diversity <span />
Answer:
The answers are matched as follows:
African forests have been hunted to near extinction levels to obtain ivory-------------->human exploitation
The eruption of mount Saint Helens destroyed some populations of conifers------> natural disasters
An infection with a fungus reduced the population of North American Elm trees ----> disease
Increasing global temperatures have altered migration patterns of humpback whales ------>climate change
