Answer:
Among some of the numerical abnormalities a karyotype can detect are: Down syndrome (trisomy 21), in which an extra chromosome 21 causes distinctive facial features and intellectual disabilities. Edward syndrome (trisomy 18), in which the extra chromosome 18 translates to a high risk of death before the first birthday.
Explanation:
Answer:
The filaments are called hyphae (singular, hypha). Each hypha consists of one or more cells surrounded by a tubular cell wall.
Explanation:
mass of hyphae make up the body of a fungus, which is called a mycelium (plural, mycelia). The hyphae of most fungi are divided into cells by internal walls called septa (singular, septum)
Answer:
The correct answer is None of these choices are correct.
Explanation:
Crossing over doesn't occur only between heterozygous genes, it also doesn't happen only in some chromosomes and it never reduces de variation, otherwise, the crossing over is one of the main causes of variation among species.
My answer will be because poaching is a business. And this business moves millions of dollars in the world every year. In addition, it provides food and resources to thousands of people around the world, but it also seriously threatens the lives of millions of species and the balance of their ecosystems, among other problems.
Among the species threatened by this illegal negcocio are:
1. Mountain gorillas
2. White shark
3. The white rhinoceros, enter others.