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Question: Human cells normally have forty-six chromosomes. Let us define the transition from one cell to two cells as occurring at the onset of anaphase. What is the number of nuclear DNA molecules present in a human cell in metaphase I of meiosis?Question 9 options:46 DNA molecules per cell. Found as 46 physically separate chromosomes in each of two nuclei.92 DNA molecules per cell. Found as 46 chromosomes each with two chromatids.46 DNA molecules per cell. Found as 23, each with two chromatids, chromosomes in each of two nuclei.23 DNA molecules per cell. Found as 23 chromosomes in each of two nuclei.46 DNA molecules per cell. Found as 46 chromosomes just prior to DNA synthesis.
How are nuclear DNA and mitochondrial DNA transferred.
In Drosophila a cross was made between a yellow-bodied male with vestigial (not fully developed) wings and a wild-type female (brown body). The F1 generation consisted of wild-type males and wild-type females.
While two monohybrid round squashes are crossed, the offspring ratio is ¼ flat, ½ oblong, ¼ round. Squash shape is therefore controlled by incomplete dominance. What offspring ratio would you expect from a cross between a plant with oblong fruit and ..
What function of intermediate filaments have in eukaryotic cells.define structure of microfilaments and microfilament network.
What is nonassociative learning and what are the differences between associative and nonassociative learning. In the small stream, you choose a rock and observe many small, flattened worms crawling on it are under surface. You decide that they belong..
What is anatomical variation of the GIT of carnivores, omnivores and non-ruminant herbivores and relate morphological variations with their diet and environment.
give Food preservation methods interfere with the enzyme activity of microbes and prevent them from surviving. How does canning, freezing, pickling and salting interfere with enzyme activity? Ideas are justified.
Artificial electron acceptors can also be used to notice a specific organelle in animal cells by cytochemistry. Name this organelle and outline a procedure that you will use to detect this organelle by cytochemistry.
express the processes of transcription and translation
List whether the movement is diffusion, osmosis, active transport, or bulk flow. Clarify the adaptations that increase the effectiveness of this movement. what is the meaning of this observation.
Most birth control methods are designed to remain the egg and sperm from uniting to form a zygote. How do they keep sperm from uniting with egg.
Describe why gram-negative bacteria are more resistant to biocides than gram-positive bacteria. Be exact and descriptive in the response. A description of the differences between gram-negative and gram-positive bacteria must be included, along with a..
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