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tensa zangetsu [6.8K]
3 years ago
10

Photosynthesis occurs

Biology
1 answer:
eduard3 years ago
4 0
Photosynthesis: Chloroplast, Cellular Respiration: starts in chloroplast, but mostly in the mitochondria. Hope I helped!
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An alleles is dominant is heterozygote when it is
Fittoniya [83]

An allele is dominant and heterzygote (Pp) when a dominant allele (P) is crossed with a recessive allele (p).

Explanation:

A dominant allele is the one with a particular dominant character or phenotype which dominates even though there are other alleles found.  

A heterozygous allele results from two different alleles coding for a gene.

A heterozygous dominant allele (Pp) results from the crossing of a dominant allele (P) with a recessive allele due to complete masking of the recessive allele (p).

For example, when dominant brown eyes are crossed with recessive blue eyes, in a heterozygous dominant allele results in brown eyes and masks the recessive blue eyes.

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3 years ago
What was a conclusion that Mendel drew from the F2 generation of this cross?
Ber [7]
<h3><u>Answer;</u></h3>

That parental traits that were not observed in the F1 reappeared in the F2.

<h3><u>Explanation</u>;</h3>
  • Mendel accounted for the observation that traits which had disappeared in the F1 generation reappeared in the F2 generation by proposing that traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1.
  • <em>I</em><u><em>t was important that Mendel examined not just the F1 generation in his breeding experiments, but the F2 generation as well, because parental traits that were not observed in the F1 reappeared in the F2.</em></u>
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3 years ago
In wolves, gray coat color (G) is dominant to black (g) and brown eyes (B) are dominant to blue (b). The genes that control thes
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50%

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Neurological and perceptual speeds are generally higher in individuals with _________ intelligence.
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Answer: C. higher

Neurological and perceptual speeds are generally higher in individuals with <u>higher</u> intelligence.

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providing examples explain how sexual reproduction in plants has evolved to become less dependent on water
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The Gymnosperms and Angiosperms are groups of plants with seed, which means that they don’ t necessary acquire water for fertilization. These groups have made adaptations for sexual reproduction on dry land.

1) Gymnosperms (plants with the seeds are not enclosed in an ovary) have developed over the course of its evolution, structures that solved the main limitations present in the Pteridophytes in relation to sexual reproduction, in the terrestrial environment. The main changes that happened as an evolutionary adaptation to dry land are those on the seeds and pollen. The advantages of the seeds are: the storage tissue which sustains growth and a protective coat of the seeds. Seed is enveloped with the layers of hardened tissue which prevents desiccation. This is what frees reproduction from the need for a constant supply of water. <span>The sperm (male gamete) of gymnosperms</span> is enclosed in a pollen grain. Thi structure is protected from desiccation and can reach the female organs without dependence on water. Gymnosperms also developed structures called cupules to enclose and protect the ovule (the female gametophyte) which will develop into a seed upon fertilization.

 

2) Angiosperms are a group of plants which protect their seeds within an ovary called a fruit. Angiosperms have special evolutionary adaptations. For example, they produce their gametes in separate organs, usually in a flower, so the fertilization and embryo development takes place inside an anatomical structure. That provides a stable system of sexual reproduction largely sheltered from environmental fluctuations like water need.

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