Biology, 01.07.2019 09:30 mattydoug4818
The image represents a pair of replicated chromosomes that are about to under meiosis and produce gametes for sexual reproduction. during meiosis, a process called crossing over can occur. during crossing over, a section of like chromosomes exchanges segments. this promotes genetic variation in life forms. imagine that meiosis proceeds and gametes are produced. based on the laws of inheritance, what is the probability that a gamete will end up with a mutated chromosome to be passed on to offspring? a) 4% b) 25% c) 50% d) 100%
Answers: 1
Biology, 21.06.2019 19:00
2. if scientists identify an animal with bilateral symmetry and no segmentation, which phylum can it definitely not belong to? a. roundworms b. annelids c. mollusks d. flatworms
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Biology, 21.06.2019 23:30
The organelle pictured is found in cells of and is theorized to have once been an independent organism.
Answers: 3
Biology, 22.06.2019 02:00
Identify the terms using the following picture. principle of dominance item 1 can be described as the . item 2 can be described as the . the "p" represents from one parent.
Answers: 3
Biology, 22.06.2019 13:20
Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.
Answers: 1
The image represents a pair of replicated chromosomes that are about to under meiosis and produce ga...
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