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15-translation requiresa) mRNA ,tRNA,and DNA b) mRNA, DNA,and rRNAc) m RNA, t RNA, r RNAd) m RNA, t RNA,DNA,r RNA16- how does termination of translation take place ?a) The poly-A tail is reachedb) The 5' cap is reachedc) A stop codon is reachedd) The end of the mRNA molecule reached17- Mendel studies seven different traits in the garden as those studied by mandel?a) Appearance b) Genotypec) Haplotyped) Categorye) Phonotype18- During elongation phase of translation, what is read?a) A siteb) E sitec) P sited) The small ribosomal subunit19- There are sixty -one codons that each specify the addition of a specific gene there are no corresponding amino acid, however there are only about for anticodons how is that possible ?a) An anticodons forms hydrogen bonds with the codon it must match with respect to the third baseb) Only about forty of the recognized sixty -one codon are presentc) There are tRNA as that can bind one of two related amino acidd) Only twenty of the codon are active one for each amino acid20- In the tigers recessive alleles causes a white tiger heterozygous is mated to another that is phenotype white which?a) 50%b) 100%c) 75%d) 25%21- The work of Gregor mendel provide an answer to two prevailing hypotheses, what are the two hypotheses ?a) The two major hypotheses of the time were blending inheritanceb) Animals use one set of rules for inheritance while plant use different rulec) Peas and another domestic plant are unsuited for studies of inheritanced) Self-fertilization is the rule in plants while cross fertilization is the rulee) Mitosis is only typical in vertebrates meiosis is only typical in invariant22- In a health cell the rate of DNA repair is equal to the rate of DAN rate of mutation, what is possible fate for the cell?a) RNA may be used instead of DNA as inheritance materialb) The cell can be transformed to cancerous cellc) DNA synthesis will continue by anew mechanismd) The cell will be become embryonic23- When Thomas hunt morgan crossed his red eyed F1 generation with red and white eyed flies , remarkably , all the white eyed fliesa) The gene involved is on the X chromosomeb) Other female specific factor in flounce eye color in fliesc) Other male specific factor influence eye color in fliesd) The gene involved is on the Y CHROMOSOMEe) The gene involved is on an autosome , but only in males24- Particular triplet of base in the coding sequence of DNA code isa) UUAb) TTTc) AAAd) UUU25- Hydrangea plant of the same genotype are planted in large flower garden and other pink flower the can be best explained by which of the following ?a) The knowledge that multiple alleles are involvedb) The alleles being codominant c) The fact that the mutation has accruedd) The alleles for blue hydrangea being completed dominante) Environmental facts are involved such as soil Ph. .
Explain how the potato cylinders changed in their turgidity. Recognize which of the solutions were isotonic, hypertonic, and hypotonic in relation to the potato.
Think about an experimental Drosophila population containing 5 males and 5 females (2N = 20) in a population. An autosomal locus (gene A) has allele A1 and A2 with frequencies 0.9 and 0.1
Carbonate precipitation can occur due to biological activities. Algal carbonate precipitation is relatively well known.
Describe what you observed in your cheek smear wet mount, direct stained slide, and indirectly stained slide. What were similarities and differences. Describe what you observed in your yeast wet mount, direct stained slide, and indirectly stained sli..
Use a flow chart or numbered list, trace the path of a water molecule through a plant. Begin with a water molecule in the soil and end with the water molecule as water vapor in the air.
Describe how the evolution of roots and simple vascular transport expanded the habitat of plants onto land.
After taking samples of HIV RNA sequences from two infected patients, you plot nucleotide differences over 500 generations. You calculate a y-intercept of -5 and a slope of 0.02.
The Carboniferous swamps were dominated through several extinct relatives of seedless vascular plants. Surviving taxa of these groups are rather small in size compared to their gigantic relatives.
A rare autosomal recessive disorder causes pink hair. A non-carrier male and an affected female marry. Think about the following pedigree and RFLP analysis prepared using HindIII.
An organism of the genotype AaBbCc was testcrossed to triply recessive organism. The genotypes of the progeny are presented in the following table.
Assume you are studying an enzyme in a large population of a newly discovered diploid plant. You have determined that there are four alleles for this enzyme.
An oak tree will produce thousands of acorns that are buried or eaten by squirrels. Explain why would the tre require to make so many a corns? why might a plant whose seeds disperse far from the parent
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