Biology, 20.02.2020 19:29 pg67891012345
Chlamydomonas reinhardtii is a unicellular algae that contains a single chloroplast, each with about 50 – 100 genomes and multiple mitochondrial organelles also with multiple genomes. Although C. reinhardtii exists mainly as a haploid organism, occasionally two cells will fuse to form a diploid cell which immediately undergoes meiosis to form four haploid progeny. The cells that fuse must be of opposite mating type, mt+ and mtInheritance of the plastid genome is uniparental mt+, whereas inheritance of the mitochondrial genome is uniparental mt- . Mutant alleles which confer resistance to antibiotics have been identified in C. reinhardtii and these are quite often variants of genes found in organellar genomes. For instance, a mutant allele conferring resistance to streptomycin (strR) maps to the chloroplast genome and a mutant allele conferring resistance to hygromycin (hygR) maps to the mitochondrial genome (wild-type sensitive alleles are designated with a superscript S). Suppose you mate an mt+ strR hygS strain of the algae with an mt- strS hygR strain. What will be the most likely phenotype of a progeny cell?A. streptomycin resistant, hygromycin resistant B. streptomycin resistant, hygromycin sensitive C. streptomycin sensitive, hygromycin resistant D. streptomycin sensitive, hygromycin sensitive
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Biology, 21.06.2019 20:00
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Biology, 22.06.2019 02:10
Will mark branliest. the theory of plate tectonics was developed with the contribution of scientists from many different disciplines. which of the following is a contribution from geophysicists?
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Biology, 22.06.2019 04:30
Emmet didn’t want to weed the garden. he put off the task toward the end of the day. he even tried to get his sister to do the job. what type of goal orientation did emmet display toward weeding the garden?
Answers: 1
Biology, 22.06.2019 08:00
Pls in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.
Answers: 3
Chlamydomonas reinhardtii is a unicellular algae that contains a single chloroplast, each with about...
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