RNA polymerase requires a double stranded molecule with a free 3′ hydroxyl to begin transcription.
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There are 300 individuals in sample group #1 taken from popu…
There are 300 individuals in sample group #1 taken from population X. How many total alleles for the trait in question are present in the sample group, assuming the trait is controlled by a single codominant gene?
True or false: One of the early discoveries that led to Cris…
True or false: One of the early discoveries that led to Crispr technology was that viral DNA was contained in between palindromic sequences (cut sites) in some bacteria.
The purpose of the primer sequence in PCR is to:
The purpose of the primer sequence in PCR is to:
In tigers, a recessive allele (‘a’) in homozygous form cause…
In tigers, a recessive allele (‘a’) in homozygous form causes a white furred tiger. Two phenotypically normal tigers are mated and produce a white offspring. A year later, they “decide” they want to have another cub. What is the probability that the offspring will be a carrier of the albino allele (Aa)?
In one of Mendel’s pea plants, seed shape and color are cont…
In one of Mendel’s pea plants, seed shape and color are controlled by genes located on separate chromosomes where the round shape allele is dominant over wrinkled and the yellow seed color allele is dominant over green. After performing a dihybrid cross (F1 heterozygous at both genes) you observed 360 round, yellow; 115 round, green; 85 wrinkled, yellow; and 20 wrinkled, green F2 plants. If these traits were controlled by two independent genes with two alleles at each gene, what is the expected number of green-round seeds from this cross?
Why is Taq polymerase used more commonly in PCR than DNA pol…
Why is Taq polymerase used more commonly in PCR than DNA polymerase I from E. coli? 1. Taq polymerase remains active during the high heat denaturation step unlike DNA polymerase I 2.Taq polymerase is less expensive than DNA polymerase I 3.Taq polymerase must be added after each deanturation step unlike DNA polymerase I
In one of Mendel’s pea plants, seed shape and color are cont…
In one of Mendel’s pea plants, seed shape and color are controlled by genes located on separate chromosomes where the round shape allele is dominant over wrinkled and the yellow seed color allele is dominant over green. After performing a dihybrid cross (F1 heterozygous at both genes) you observed 360 round, yellow; 115 round, green; 85 wrinkled, yellow; and 20 wrinkled, green F2 plants. If these traits were controlled by two independent genes with two alleles at each gene, would you reject your null hypothesis (that traits are controlled by two independent genes, two alleles at each gene, etc.) based on Table 3.2?
Gametes typically possess only one copy of each chromosome a…
Gametes typically possess only one copy of each chromosome and are said to exist in a __________ state.
DNA migrates toward which pole during gel electrophoresis?
DNA migrates toward which pole during gel electrophoresis?