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Virty [35]
3 years ago
12

A group of paleontologists have discovered a new fossil animal resembling a horse with intact DNA in the fossil. The fossil anim

al is theorized to have a phylogenetic relationship with a horse. What is the most appropriate method for determining if a close relation existed between these two species? A : Morphological studies B : Biochemical estimation C : Genetic analysis D : Physiological studies
Biology
1 answer:
balu736 [363]3 years ago
3 0

The correct answer is C. Genetic analysis

Explanation:

In biology, two organisms have a phylogenetic relationship if they share a common ancestor and therefore have genetic similarities although in most cases there are also similarities in morphology, physiology, etc. However, two organisms might have similarities in morphology and physiology without genetic similarities. Due to this, if you need to determine whether two species are related or not the best method is a genetic analysis as only those organisms that share a common ancestor (phylogenetic relationship) are genetically similar.

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3 years ago
Cells in a cat's pancreas produce insulin, but the cells in its heart do not. Which statement best explains this?
Genrish500 [490]

Answer:

The correct answer is: A. The genes for insulin production are not activated in heart cells.

Explanation:

<u>DNA </u><u>is present in practically every cell in an organism</u>, but not every cell performs the same tasks as the rest. This happens because genes in the DNA   <u>code for different types of proteins</u>, from enzymes to transporters, that impact greatly on the <u>function</u> of a cell; and these genes can be activated or inactivated which will directly correlate to the type of cell and the function that it has.

<u>If the cells in the pancreas can produce insulin but the cells in the heart can't it's because the cells in the heart have the genes for insulin production inactivated</u>.

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7 0
4 years ago
Which of the following pigments are found in Cyanobacteria
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