Above 100 specie family found. . for example dolphins
Answer:
d. LH— kidney
Explanation:
Target organ is the specific organ on which the hormone or drug or any substance preferentially acts.
The target organ of TSH is the thyroid gland.
ACTH is secreted by the corticotropes of anterior pituitary gland. Target tissue for the hormone is adrenal cortex.
Gonadotropic hormones - These are the hormones that acts on the gonads which are testes in case of the male and ovaries in case of the females.
FSH and Luteinizing hormone (LH) are both secreted by regulated by Anterior Pituitary gland. The target tissue of both FSH and LH in males are the sertoli cells within the testes and in the female the granulosa cells of the ovary.
<u>Hence option D is not correctly matched.</u>
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Answer:
Species 1 = ATTGGCCATT and Species 3 = TTTGGCCATT are the most similar.
Explanation:
Evolutionary distance (ED) is defined as the total number of substitutions of nucleotide in one site between two DNA sequences that are homologous. It is also referred to as the number of substitutions of amino acid in one site between two protein sequences that are homologous. Based on the definition of ED, the two most similar species are species 1 and 3.
<h2>C) option is correct </h2>
Explanation:
Natural selection as proposed by Darwin is a selection pressure which operates in a population and allow the best fitted genotype to survive in changing environmental conditions and eliminate the other genotype which are not fit
Causes of natural selection include: Genetic drift, mutation(changes allelic frequency) and sexual selection
In the given example, condition necessary for natural selection to occur on the mouse population is traits that affect the survival of the mice vary among individual mice, in this condition superior genotype will get the opportunity to reproduce and inferior genotype does not get opportunity to reproduce thus their genotype in population does not increase rapidly and hence they become eliminated leading to genetic drift
