1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
schepotkina [342]
3 years ago
14

3 examples of inherited variation in dragon fruit​

Biology
1 answer:
timurjin [86]3 years ago
6 0

Answer:

Dragon fruit, a kind of fruit belonging to Hylocereus spp., has brought about interest in China not only due to its important economic value with high contents of nutrients, but also due to the striking tolerance to drought stress. Fifteen morphological traits and 111 Inter-Simple Sequence Repeat (ISSR) markers generated from 16 primers were firstly employed to discriminate 50 accessions recently selected in China, as well as to evaluate their genetic relatedness. According to univariate statistical analysis of morphological traits, high variations were observed between or/and within the wild and cultivated lines. The dendrogram of 50 accessions was constructed based on morphological traits. Taking 7.50 as a threshold, three major clusters could be observed, i.e. the first included nine genotypes, which mainly belonged to wild accessions; the second clusters standing for the red pulp genotypes; the third consisting of the white pulp accessions. Each ISSR primer generated 4–10 obvious DNA bands ranging from 100 bp to 1500 bp, with the average of 6.9 per primer.

You might be interested in
When two adjacent bases in the same strand of DNA dimerize (form a covalent bond between them), what happens to the DNA?
kondaur [170]

The DNA of every higher organism consists of two strands which are joined together through bonding between nitrogenous bases. We know well that the base of one strand forms hydrogen bond between the base of the other strand to hold the DNA intact. Thymine always pairs with Adenine and Guanine always pairs with Cytosine, this way an intact and normal DNA structure is formed.

However, sometimes the Ultra violet (UV) rays cause serious damage to DNA. When UV rays are absorbed by DNA, where the bases are thymine or cytosine they add energy at that point. This energy causes the formation of covalent bond between adjacent cytosine- cytosine or thymine-thymine bases of same DNA strand (Please see attached figure). This abnormal process is called the formation of Pyrimidine dimers.  

What harm they can incur to us?

Our body cells have excellent DNA proofreading mechanisms that correct the errors in DNA. But sometimes when DNA has to replicate, the dimers don’t let the DNA polymerase enzyme to correctly read DNA strand because there are abnormal structures. The enzyme incorporates wrong base, at the position of dimers for example if C-C dimer is present, adenine instead of guanine will be added at that position. This causes the presence of incorrect base in newly synthesized DNA.  

This process leads to mutation in the cells which is very common cause of increased risk of cancers nowadays.


4 0
3 years ago
Which statement accurately describes natural selection?
GarryVolchara [31]

Answer:

a when animals adapt to their environment and reproduce consistently, they will evolve

Explanation:

yeaaaaa

4 0
2 years ago
PLEASE HELP!!!
katrin2010 [14]

Answer:

A:1 only.

Explanation:

In order for a nuclear power plant to be decommissioned safely, components have to be taken apart and cleaned to reuse in a different location.

5 0
1 year ago
The image shows EKGs of a person with normal heart waves and of a person having tachycardia. Based on this image, what kind of c
hjlf
Tachycardia is a condition when the heart rate is greater than 100 beats per min at rest. The electrocardiogram is a diagnostic tool that measures and records the electrical activity of the heart. Bradycardia on the other hand is when the heart rate is slower than normal. The Tachycardia and bradycardia can arise from either the SA node or from other areas of the cardiac.
7 0
3 years ago
Read 2 more answers
Does anyone want to be friends with me and it has it be a boy not girls
Yanka [14]

Answer:

Sure

Explanation:

5 0
3 years ago
Other questions:
  • What is the importance of reproductive isolation in speciation?
    14·2 answers
  • Unlike New World monkeys, hominines 
    15·1 answer
  • What are the three parts of an ATP moleclue
    9·1 answer
  • Some organisms have favorable traits that are well-suited to the environment at hand. Organisms with this advantage are more lik
    5·2 answers
  • Please help! Outline the structure of the main tissues of the body (skin and stomach) Write a brief description to show how diff
    14·1 answer
  • How do plants obtain more sunlight
    5·1 answer
  • How is mitosis different in plants and animals?
    13·2 answers
  • PLEASE HELP ASAP ILL GIVE YOU BRAINLIEST AND MOST HELPFUL!! ​
    12·1 answer
  • Original DNA Sequence:<br> TACACCTTGGC GACGACT<br> mRNA Sequence:<br> Amino Acid Sequence:
    10·1 answer
  • How are alleles passed for guinea pig fur color and length?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!