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lesya [120]
3 years ago
7

In what process does cross over occur

Biology
1 answer:
Shtirlitz [24]3 years ago
7 0

Answer: Crossing over is a biological occurrence that happens during meiosis when the paired homologs, or chromosomes of the same type, are lined up.

Explanation:

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What of the following correctly identifies some of the molecules produced from the glucose synthesised by photosynthesis?
Yuliya22 [10]

Answer:

plant life use a system known as photosynthesis to make meals.

at some stage in photosynthesis, plant life entice mild strength with their leaves.

plant life use the strength of the solar to extrade water and carbon dioxide right into a sugar known as glucose.

glucose is utilized by plant life for strength and make different materials like cellulose and starch.

cellulose is utilized in constructing mobileular walls. starch is saved in seeds and different plant components as a meals source.

Explanation:

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2 years ago
An AAaa tetraploid plant undergoes self-fertilization. At least two dominant A alleles are needed to obtain the dominant phenoty
MatroZZZ [7]

Answer:

The frequency will be  35/36

Explanation:

An AAaa tetraploid plant will only produce a gamete which will be Aa, but during a self crossing a progeny with genotype AAaa will be produced and this will happen at a frequency of 35/36 and this simply means that the progenies produced during the self crossing  will all have a dominant phenotype

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3 years ago
The suprachiasmatic nucleus of the ________ is responsible for regulating your circadian rhythms. In this way it plays a very im
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tiny region of the brain in the hypothalamus, situated directly above the optic chiasm.

3 0
3 years ago
Which of the following are characteristics of archaeal cell membranes that probably help them survive at very high temperatures?
torisob [31]

Answer:

Option-B, C and E

Explanation:

Archaebacteria are a group of prokaryotes which can survive the extreme conditions. The archaebacteria which can survive very high temperature are called hyperthermophiles. The hyperthermophilic bacteria can survive temperature range between 70 t 125 °C observed in hydrothermal vents.

The archaea bacteria can withstand the high temperature as their membrane is adaptive. The membrane of the archaea is more stable due to the ether linkage which makes carbon less chemically reactive. The phospholipids possess a monolayer which decreases the layer fluidity and thus the unwanted movement of molecules.

The archaea also contain cyclopentane rings in the ester-linked phospholipids which allows tight pacing of the molecules which decrease the movement of solute into and out of the cell.

Thus, the selected options are correct.

6 0
3 years ago
1.1 Cell division is found to occur in:
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Cell division is found to occur in both groth and reproduction.The answer is D

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