Answer:: Jade's error occurs in the top-right square of the Punnett square. In this square, she identifies the phenotype as freckles, but to have freckles, the offspring must have at least one dominant allele. The offspring in this box are ff. Because there is no dominant allele present, the offspring will not have freckles.
Explanation: Did the assignment
Answer:
B. The pathogen must be grown in pure culture.
Explanation:
Virus, and also some bacteria can not be cultured in "lifeless media". In the case of bacteria, we refer to the obligate intracellular ones, and all virus. Thus, this postulate can not be fulfilled in all cases. Virus can be propagated on tissue cultures, but certainly this was not considered by Koch. Moreover, these methods often result in spontaneous genetic alterations, which leads to adaptation and even attenuation in animal models of disease, so, the cultured virus perhaps does not induce the same disease when introduced to another specimen.
Meiotic cell<span> division. during the </span>normal<span> meiotic division of a diploid </span>cell<span>, the change in </span>chromosome number<span> that occurs is represented by. 2n-n. in a </span>species<span> of </span>corn<span>, the </span>diploid number<span> of </span>chromosomes<span> is</span>20<span>. what is the </span>number<span> of </span>chromosomes found<span> in </span>each<span> of the </span>normal egg cells produced<span> by the</span>species<span>. 10. synapsis ...
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Answer:
a) recovered from pituitary glands removed from human cadavers.
Explanation:
- The human growth hormone is responsible for growth along with cellular proliferation and reproduction in humans.
- The hormone is secreted by the pituitary gland.
- Therefore, before the recombinant DNA techniques were available the hormone was isolated from the pituitary glands fo human cadavers.
- However, this method was not continued because the extract hormone became a source of infection for diseases such as the Creutzfeldt-Jakob disease.
- Therefore, alternatives were looked for and with the advent, in recombinant DNA techniques, the scientist was able to successfully make the recombinant human growth hormone as well.
B) vasopressin and oxytocin
