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3 years ago

Where is the ginkgo tree found?

2 answers:

mote1985 [20]3 years ago

7 0

Although Ginkgo biloba and other species of the genus were once widespread throughout the world, its range shrank until by two million years ago, it was restricted to a small area of China. For centuries, it was thought to be extinct in the wild, but is now known to grow in at least two small areas in Zhejiang province in eastern China, in the Tianmushan Reserve. However, recent studies indicate high genetic uniformity among ginkgo trees from these areas, arguing against a natural origin of these populations and suggesting the ginkgo trees in these areas may have been planted and preserved by Chinese monks over a period of about 1,000 years This study demonstrates a greater genetic diversity in Southwestern China populations, supporting glacial refugia in mountains surrounding eastern Tibetan Plateau, where several old-growth candidates for wild populations have been reported.[59][60] Whether native ginkgo populations still exist has not been demonstrated unequivocally, but evidence grows favouring these Southwestern populations as wild, from genetic data but also from history of those territories, with bigger Ginkgo biloba trees being older than surrounding human settlements

Thepotemich [5.8K]3 years ago

3 0

China .the ginkgo ,also known as the maidenhair tree, has been planted since ancient time in Chinese

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You are feeling really yucky . You are very warm and are beginning to sweat . you take your temperature and it says that it is 1

Alexandra [31]

Answer: You are sick and you might have the flue of a fever.

Explanation: cause if your sweating bad and you take your temature and its hight then your sick.

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3 years ago

Manny is using a computer model to investigate the effects of substitution mutations. The model presents Manny with a long base

Troyanec [42]

Answer:

The most likely explanation for the truncated polypeptide -due to the substitution of cytosine for adenine- is that mutation introduced a stop codon in the middle of the gene.

Explanation:

A codon consists of three nucleotides -in the RNA chain- whose order determines a specific amino acid. Not all codons code for amino acids, as there are termination codons, also called stop codons, which are UAG, UGA and UAA.

If in Manny's computer model, the substitution of cytosine by adenine produced a termination codon, the synthesis of a peptide is stopped prematurely resulting in a truncated peptide.

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3 years ago

What structures in a mantis shrimp store energy?

Nuetrik [128]

The Muscles, the shrimp stores energy in it's muscles.

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2 years ago

Read 2 more answers

during what phase of a muscle twitch chemical changes such as the release of calicum are according intracelluary as rthe muscles

SOVA2 [1]

During latent phase of a muscle twitch chemical changes such as the release of calicum are according intracelluary as rthe muscles prepare for contractrion.

What are the phases of a twitch contraction?

A single contraction is called a twitch. A muscle twitch has a latent period, a contraction phase, and a relaxation phase.
A graded muscle response allows variation in muscle tension.

What is a latent period ?

The amount of time that passes between an action potential being generated in a muscle cell and the beginning of muscular contraction.

What is a muscle twitch?

The fundamental reaction of a motor unit to a single stimulus is a muscle twitch. Muscle Twitch in three different states .
Excitation of the muscle fiber takes place during the latent phase, and calcium ions are released from the sarcoplasmic reticulum into the cell's cytoplasm.

What happens during latent period of muscle twitch?

A single muscle twitch consists of three parts. the contraction phase, the relaxation phase, and the latent period, often known as the lag phase.
The action potential reaches the muscle, and the latent period is the brief (1-2 msec) interval before tension is seen in the muscle.

Learn more about latent period

brainly.com/question/10696517

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2 years ago

How will you determine which strain is wild type and which strain is mutant? Can you justify your answers using molecular biolog

Levart [38]

Answer: The simplest way is to determine if a strain is mutant is observing morphology, growth rate, double time, etc but it is accurate if you can prove if the strain is deficient in one aminoacid or can't metabolize lactose, etc.

Explanation: A wildtype strain functions normally, for example, can metabolize as a carbon source, glucose, lactose and other sugars, can synthesize all the aminoacids requered for protein synthesis, etc. If a strain suffers a mutation and it is inheritable, the strain become a mutant. Since several mutations can be silent ones, only those that interfere with a process, can be assesed easyly.

For example, if you have several strains and put them in a lactose medium, but some of them cannot growth means that are lactose mutants. Those strains could carry a mutation in genes that encode lactose degrading enzymes or in regulatory genes of the lac operon, etc.

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3 years ago