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WITCHER [35]
2 years ago
12

The ultimate source of energy for every cycle is _____.

Biology
2 answers:
wolverine [178]2 years ago
5 0

Answer: The correct answer would be the sun.

Explanation:

The sun is the ultimate source of energy for earth's biosphere. It powers all the cycles and food chains present on earth.

The solar energy is converted into chemical energy by the process termed as photosynthesis. This energy then transferred to higher trophic levels in any food chain.

Thus, it helps in cycling of different elements such as carbon throughout the biosphere.

Another example may include water cycle which starts with evaporation and transpiration of water from water bodies. The energy for the same is also provided by the sun.

kifflom [539]2 years ago
4 0
The answer is sunlight.
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In a dihybrid cross involving two autosomal traits on different chromosomes in which the parents are purebred for the opposite f
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Answer:

The question lacks options, the options are:

A) 1 out of 16

B) 3 out of 16

C) 6 out of 16

D) 9 out of 16

The answer is 1 out of 16

Explanation:

This is a DIHYBRID cross because it involves two different genes coding for distinct traits. One of the traits will be dominant while the other recessive. Hence, parents that are purebred for opposite forms of the trait means that one parent is homozygous dominant while the other is homozygous recessive. When these two parents cross, they produce F1 offsprings that all possess the dominant trait but heterozygous/hybrids.

When these hybrids are self-crossed, they produce four different combinations of gametes which when crossed using a punnet square will result in F2 offsprings with a 9:3:3:1 phenotypic ratio according to Mendel's observation.

9 represents offsprings that are dominant for both traits

The two 3's represents offsprings that are recessive for one trait and dominant for the other respectively.

1 represents offsprings that are homozygous recessive for both traits.

Hence, 1 out of 16 offsprings will be homozygous recessive for both traits.

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