14173450
Description
Flashcards by Olivia Gniadek, updated more than 1 year ago
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Created by Olivia Gniadek
over 6 years ago
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| Question | Answer |
| Some cells have several nuclei per cell. How could such multinucleated cells be explained | The cell underwent repeated mitosis, but cytokinesis did not occur |
| All the following about RNA polymerase are correct except | the start point for transcription is AUG |
| The following are enzymes involved with DNA replication except | carboxylase |
| Work out the amino acid sequence produced from this region of DNA given that the top strand is the coding (non-transcribed) strand | Lys-Ala-Leu-Arg-Gln |
| Independent assortment occurs during | Metaphase I |
| Meiosis | results in the production of haploid gametes |
| A cross is set up between individuals with the following genotypes. AAbb and aaBB. If the two loci assort independently, which of the following statements is true | F2 progeny will display a 9:3:3:1 phenotypic ratio |
| This image below displays a normal DNA template, the mRNA transcript and the amino acid that codon encodes (left). to the right are four hypothetical point mutations and the resulting amino acids from the altered codons. Mutation number 1 is known as: | Silent |
| A mating of two heterozygous F1 dogs with black coats and normal vision was set up sa follows: BbNn x Bb Nn to produce the F2 generation Given that the two genes show independent assortment, what are the genotypes of the F1 gametes? | BN, Bn, bN, bn |
| Analysis of the cross AaBb x AaBb, where the genes A, with alleles A, a, and B, with alleles B, b are independently assorting, would be expected to show? | the AaBb individual produces four types of gametes in equal proportions |
| The central dogma of molecular biology suggests that | there is a sequence of information flow from DNA to RNA to protein |
| Which of the following statements about DNA replication is correct | the lagging strand is synthesised discontinuously in the 5' to 3' direction |
| A kidney cell and a liver cell | express a different subset of genes from the same chromosomes |
| All the following statements about the cell cycle are correct except | the G2 stage of interphase is when chromosomes begin to condense |
| An RNA transcript may include all these except | a promoter |
| Mature messenger RNA from eukaryotes contains which of the following elements | exons |
| A particular form/variant/state of a trait | Phenotype |
| If one strand of a DNA molecule has the sequence of bases 5'ATTGCA3' the other complementary strand would have the sequence | 5'TGCAAT3' |
| Given the cross Dd x Dd | there would be a 3:1 ratio of dominant to recessive progeny |
| The pedigree below shows the inheritance pattern of a human disease. there is a single gene with two alleles (A is dominant to a) found to be responsible. | The mother is heterozygous |
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