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Murljashka [212]
3 years ago
15

2) What is a gene? a) An organelle b) A molecule c) A section of a chromosome that controls a trait d) A combination of sugar, s

tarch, and cells
3) What is a chromosome? a) A segment of DNA that controls one trait b) A type of cell c) A double helix d) A bundle of DNA

I need to know 2 and 3 plss help or I'm going to fail
​
Biology
1 answer:
dusya [7]3 years ago
6 0
1 is the lettler c 2 b
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A rapid method of speciation that has been important in the history of flowering plants is
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Polyploidy

Explanation:

Polyploidy can be defined as a rapid method of speciation that has been important in the history of flowering plants.

In plants, it involves the possession of two complete sets of chromosomes and it leads to the origin of new species.

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2 years ago
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The synaptonemal complex is Group of answer choices a network of microtubules that forms the spindle apparatus. a region of high
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a network of proteins that holds homologues together.

Explanation:

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Generally, a synaptonemal complex (protein lattice) is formed between homologous chromosomes during mitosis and meiosis. Also, synaptonemal complex is important for the formation of the four sister chromatids referred to as tetrads.

Furthermore, the synaptonemal complex (protein lattice) has a tripartite structure which comprises of the following components;

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II. SC protein-2 (SYCP2).

III. SC protein-3 (SYCP3).

In conclusion, the synaptonemal complex plays a significant role in synapsis, recombination and chromosome pairing.

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