Answer: Polyploidy
Explanation:
Polyploidy is defined as the phenomenon by which cells, tissues or organisms with three or more complete sets of chromosomes originate. Such cells, tissues or organisms are called polyploids.
If the genomes of a polyploid species come from the same ancestral species, it is said to be autopolyploid or autoploid. And if they come from two different ancestral species, it is said to be allopolyploid or alloploid. <u>Depending on the number of complete chromosome sets that the species has it is called triploid (3X), tetraploid (4X), pentaploid (5X), hexaploid (6X) and so on, where X is the monoploid number, and not to be confused with the haploid number.
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Redundant genetic elements of polyploid organisms can be transformed into single copies by sub-functionalization, neofunctionalization mechanisms or by the appearance of certain mutations.
<u>Two populations are sympatric when they exist in the same area and thus frequently encounter one another. </u>In general, different species cannot interbreed and produce healthy and fertile offspring due to barriers known as reproductive isolation mechanisms. Polyploidy speciation is common in plants but rare in animals. So, animal species are much less tolerant of changes in ploidy. For example, human embryos that are triploid or tetraploid are not viable, cannot survive.
Answer:
meander
Explanation:
A meander is a series of regular sinuous curves in the channel of a stream/river/watercourse, thereby forming a rounded or "S"-shaped bend curve. Meanders are common in alluvial areas that have low gradients, where they are formed by the dynamics of the watercourse. The meander belt is the zone within which a meandering watercourse occupies on its floodplain. The sinuosity is a measure to calculate the degree of meandering in the channel of a watercourse.
Answer:
Explanation:
Gert Kema, a professor of tropical plant pathology at Wageningen University and a banana expert, led the study. "Black sigatoka has significant social, environmental and economic implications around the world. Thanks to the DNA sequencing of Pseudocercospora, we gain deeper insight into the interaction between the fungus and banana plants. It can provide us with clues to increase the sustainability of banana cultivation and make it better for the environment, the locals, and the economy. For example, the findings show production and It provides us with the opportunity to develop banana plants that are suitable for export and resistant to black sigatoka. ”
This new understanding of the DNA of black sigatoka also provides new information for more effective development. increase. And hopefully a crop protection product that is less harmful to the environment. This can reduce the amount of spray and improve the quality of life for those who work in plantations and those who live nearby.
Answer:
The rabbit hutch should contain a watering device (bowl, bottle), feeding bowl, plentiful hay, bedding (if using, it can be hay or straw) and a litter box.
