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777dan777 [17]
3 years ago
15

A version of a gene

Biology
1 answer:
Inga [223]3 years ago
4 0

Different versions of a gene are called alleles. Alleles are described as either dominant or recessive depending on their associated traits.

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What happens during anaphase II of meiosis? The nuclear membrane begins to form around haploid sets of chromosomes. Homologous c
Kazeer [188]

Answer:

The option that says: Sister chromatids separate from each other and migrate to opposite ends of the cell.

Explanation:

This question wants to test us on a very interesting part in genetics that is Cell Cycle, Mitosis and Meiosis.

In mitosis, the cell divide to produce or generate two daughter cells that has the identical genetic infomation just as the one in the parent cell. After mitosis, we have Cytokinesis.

For meiosis, it is divided into two that is meiosis I and meiosis II. Meiosis I is about the separation of homologous chromosomes pairs while meiosis II is about the separation of chromosome into two chromatids.

In anaphase II of meiosis, "Sister chromatids separate from each other and migrate to opposite ends of the cell" after the division of the centromere.

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3 years ago
Wheat has flowers similar to those in Fig. 5.1, but reproduces by self-pollination. Explain the consequences of self-pollination
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Answer:

The transfer of mature pollen grain from anther of the flower to the stigma of the same flower of the same [species  is called self pollination.

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Therefore during self pollination, the same genes are distributed  from one generation to another. Thus genetic purity is ensured. It also ensured reproductive success. because there is little chance of the pollen grain getting lost in transit. It is also certain  a particular plant would always breed true.

Additionally it prevent  the process of transfer of genes in some transgenic crops( rice, maize) where through genetic engineering some genes are introduced in their genome.

The only negative effect is lack of genetic diversity. Therefore after a period of time the plants get  weak and prone to diseases and infection. Because of poor resistant from lack of variation.

Explanation:

4 0
3 years ago
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pigments are responsible for that if that doesn't help you. you can go to yahoo answers and search your question
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Best answer would be B.
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