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Butoxors [25]
3 years ago
8

What molecules that allows plants to tell how bright light is and which direction it comes from?

Biology
1 answer:
morpeh [17]3 years ago
5 0
Auxin is the molecule which is related to the phototropism of the plants. In the mutant plants, which do not have hormone auxin, do not respond to light. It activates proton pump, and leads to the decrease in the pH of the leaf. This acidification breaks cell wall structure and cell wall become less rigid, and thus, can bend towards the light, by exerting mechanical pressure.
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If a cell has 32 pairs of chromosomes in its diploid state, how many chromosomes will it have after Meiosis 1? A. 8 B. 64 C. 32
Lostsunrise [7]

Answer:

option c is correct that is 32

Explanation:

meiosis occur in two phases in the first phase DNA replication occur and amount of DNA becomes doubled without any changes in the chromosomes number and two daughter cells( each 2n) are formed

now in stage 2 each daughter cell undergoes mitosis with the formation of two cells  each with half chromosomes (n)

now 2n =32

n=32/2=16

after meiosis stage 1 ........ two daughter cell each with 32 chromosomes  

stage 2.... each daughter cell form two grand daughter cell each with 16 chromosomes

3 0
3 years ago
if two red eyed heterozygous flies are mate together what are the possible genotypes of their offspring
Ray Of Light [21]
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5 0
3 years ago
The peripheral nervous system connects the ____ sense to the ____ because it is connected to the spinal cord . Please help!!!
Mars2501 [29]
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5 0
3 years ago
The physical location of a gene within the genome is called
deff fn [24]
The physical location of a gene within the genome is called the Locus.
5 0
3 years ago
What is the primary change that happens to a human during the third trimester of gestation?
True [87]

Answer:

<em>The correct answer is C) The organs mature</em>

Explanation:

During the 3rd trimester, the baby continues with its development. Structures like the bones have completely formed but are soft. The baby is capable of opening and closing its eyes. During the 3rd trimester, the organs of the baby are fully mature and can carry out their own functions. By the end of the third- trimester, the baby turns in head- down position. Hence, the correct option is C.

4 0
3 years ago
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