Deforestation threatens biodiversity because it is destroying the habitats of many animals and without their habitats, the animals die.
Answer:
exercising and having a healthy diet
Plants make carbohydrates through the process of
photosynthesis. When the leaves of the plants absorb the sunlight, they use
this energy to combine water with carbon dioxide. The by-products of mixing carbon
dioxide and water are glucose and cellulose.
<span>Photosynthesis is a unique trait that separate
plants from other living organisms. They can provide the necessary nutrients to
help sustain themselves and survive for longer periods of time. When
carbohydrates are in excess, plants have the ability to store and use them when
one of the ingredients of photosynthesis is not available. </span>
The phenotypic proportions which would be expected if the genes for red eyes and for white-banded wings were located on different chromosomes are:
(a)
- 1⁄4 wild-type eyes, wild-type wings
- 1⁄4 red eyes, wild-type wings
- 1⁄4 wild-type eyes, white-banded wings
- 1⁄4 red eyes, white-banded wings
<h3>What is the distance and rate of recombination?</h3>
The distance between the genes is four map units.
The rate of recombination between the genes for red eyes and those for white-banded wings is 4%.
(b)
The F1 heterozygote inherited a chromosome with alleles for red eyes and white-banded wings (re wb) from one parent and a chromosome with alleles for wild-type eyes and wild-type wings (re+ wb+) from the other parent. These are therefore the phenotypes of the nonrecombinant progeny, present in the highest numbers. The recombinants are the 19 with red eyes, wild-type wings and 16 with wild-type eyes, and white-banded wings.
RF = recombinants/total progeny × 100% = (19 + 16)/879 × 100% = 4.0%
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