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PCB3063 Exam study Guide @2024-2025
Mus musculus is a mammalian species used as a model organism in biology - Answer
true
Alternative forms of a gene are called alleles - Answer true
during meiosis, sister chromatids (not homologs) separate at anaphase of meiosis II -
Answer true
the diplod number of chromosomes for humans is 46 - Answer true
in structured genetic crosses, the term F1 refers to the first filial generation - Answer
true
a pachytene-stage bivalent contains four chromatids - Answer true
prokaryotic cells lack a nuclear envelope - Answer true
in a normal chi-squared test for a genetic cross, if you obtained a P-value of 0.00001,
you should 'reject the Null hypothesis' - Answer true
in the G2 phase of the cell cycle for a typical animal somatic cell, the nuclear genetic
material should be replicated and haploid - Answer false
Dna replication takes place during the M phase of the cell cycle - Answer false
sickle cell anemia is caused by a mutant form of tubulin - Answer false
A 9:3:3:1 phenotypic ratio is expected for the F1 generation in a dihybrid cross - Answer
false
cells from the sporophyte phase of plants are generally expected to be triploid - Answer
false
analysis of F2 individuals from a monohybrid cross is sufficient to observe mendel's
postulate of independent assortment - Answer false
an organism with a haploid number of 5 dan produce 512 different combinations (not
considering crossovers) of chromosomes in the gametes after meiosis - Answer false
Danio rerio - Answer Zebrafish, cardiovascular disease
Saccharomyces cerevisiae - Answer eukaryotic microorganism, cancer, werner's
syndrome
, Drosophila melanogaster - Answer insect model genetic species "fruit fly", nervous
systems
Caenorhabditis elegans - Answer worm model, developmental genetics, diabetes
Arabidopsis thaliana - Answer model for plant biology
e.coli - Answer bacteria, colon cancer and other cancer
M. musculus - Answer Lesch-Nyhan disease, cystic fibrosis, fragile-X syndrome, and
many other diseases
genomics - Answer analyzes genome sequences to study the structure, function, and
evolution of genes and genomes
Proteomics - Answer identifies the set of proteins present in a cell under a given set of
conditions, and studies their functions and interactions
Bioinformatics - Answer develops hardware and software for processing nucleotide and
protein data
during mitosis and meiosis, chromatin fibers coil and condense to form visibly distinct -
Answer chromosomes
meiosis leads to production of ____ which contain half the number of chromosomes (n) -
Answer gametes
mitosis leads to production of ___ cells, each with the same number of chromosomes as
the parent cell (2n) - Answer two
in what are of the nucleus is DNA compacted into in a Prokaryotic cell - Answer nucleoid
3 structures of cytoskeleton - Answer microtubules, microfilaments, intermediate
filaments
Smooth ER - Answer lipid synthesis, detoxification, calcium storage
Rough ER - Answer Protein synthesis and processing
site of photosynthesis in plant cells - Answer plastids
----- --- contain the same number of chromosomes for members of the same species -
Answer somatic cell
chromosomes exist in --- ---- in diploid organisms - Answer homologous pairs
the --- is a constriction that divides the chromosome into two arms - Answer centromere
metacentric - Answer centromere in middle
submetacentric - Answer centromere between middle and end
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