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poizon [28]
2 years ago
6

The formation of ova, or female reproductive cells, occurs when diploid germ cells undergo meiosis. In female swamp wallabies (W

allabia bicolor), diploid germ cells contain 101010 chromosomes.
At the beginning of meiosis I, a female wallaby germ cells contains
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
101010 homologous pairs of chromosomes comprising a total of 202020 chromatids

(Choice B)
B
555 homologous pairs of chromosomes comprising a total of 202020 chromatids

(Choice C)
C
101010 homologous pairs of chromosomes comprising a total of 101010 chromatids

(Choice D)
D
555 homologous pairs of chromosomes comprising a total of 101010 chromatids
Biology
1 answer:
Degger [83]2 years ago
5 0

Answer:

(Choice B) 555 homologous pairs of chromosomes comprising a total of 202020 chromatids

Explanation:

Homologous chromosome are those two chromosomes which have same gene but different in shape and appearance. Chromatids are the identical copies of chromosome. Single chromosome splits into double number of chromatids. In 555 pairs, 101010 chromosomes are present so 101010 chromosomes splits into 202020 chromatids.

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When a neuron responds to a particular neurotransmitter by opening gated ion channels, the neurotransmitter is serving as which
GrogVix [38]

The question is incomplete as it does not have the options which are:

A) relay molecule

B) transducer

C) signal molecule

D) response molecule

Answer:

C) signal molecule

Explanation:

The transmission of signals in the neurons takes place in the form of electrical energy and chemical energy. The signals get transmitted in the form of electrical signals inside the neurons but when the signals have to be passed on to the next neuron on the pathway then the electrical signals get converted into the chemical signals.

The electrical signals cause the release of the chemical signals molecules called neurotransmitter from the synaptic vesicles in the presynaptic neuron and also opens the gated ion channels at the terminal. The neurotransmitter thus acts as a signal molecule in the transmission of a signal through neurons.

Thus,  C) signal molecule  is the correct answer.

8 0
2 years ago
ANSWER IN TEN MINUTES GET BRAINLEST ANSWER!!!!!!!!!!!!!!!!I had a lab but I don't know this answer help will be very appreciate
Leokris [45]
Best Answer: Well, you have to look at the onion slide under the microscope and looks at each cell and tell what stage (interphase, prophase, etc.) they are in. and then for the description probably tell which one there is the most of and maybe why you think that is. You can find pictures of each phase in your book. I did a lab like this not too long ago in my bio class lol. And, i believe that you will get a lot in interphase (when cells are not currently dividing), just to let you know.
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Direct stimulation of the motor cortex would be most likely to result in:
enot [183]
Movement of mouth and lips
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Soon after the island of Hawaii rose above the sea surface (somewhat less than 1 million years ago), the evolution of life on th
krek1111 [17]

Answer:

The correct answer is- founder effect  

Explanation:

Founder effect occurs when a small number of individual isolates from the majority of the population by natural calamity or any other region. These isolated individuals show less genetic diversity than the larger population because they are less in numbers.  

Therefore founder effect makes a small group of individuals isolate from a bigger population and make them occupy a different habitat. So a founder population can go on a newly developed island and start reproducing there.

A founder population over time converts into a new species because of reproductive isolation from the main population.  So the evolution of life on the island of Hawaii should have been most strongly influenced by founder effect.

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2 years ago
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Sedbober [7]
The correct answer is C
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