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Biology test 4
4th and final test in biology
89
Biology
Undergraduate 3
11/14/2011

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Term
Hippocrates (400 b.c.e)
Definition
Proposed the theory of pangenesis
Term
Pangenesis
Definition
The idea that parts from all areas of the body come together to form the eggs and sperm
Term
Homunculus
Definition
a minerature human being, in human sperm cells.
Term
Anton van Leeuwenhoek [1677]
Definition
Who first observed the Homunculus?
Term
Nicolas Hartsoeker
Definition
Who produced the image of tiny men inside the sperm?
Term
Gregor Mendel
Definition
The Austrian monk who became interested in Plant breeding and would later become the father of genetics
Term
True breeding plants produce similar offspring, Hybrids do not breed true
Definition
What were the two main concepts of Inheritance at the time?
Term
True
Definition
Pea plants can self fertilize true or false?
Term
Cross-fertilized
Definition
the process by which you remove the male part of the plant and introduce pollen from a different strain is ?
Term
Anther
Definition
Male reproductive part that contains pollen, gives rise to haploid sperm
Term
Carpel
Definition
Female reproductive part that contains ovules in pea plant
Term
Monohybrid cross
Definition
A cross to study only 2 variations of a single trait
Term
Parental generation
Definition
The P generation is the?
Term
The offspring from the P generation
Definition
The f1 generation is a result of?
Term
Traits
Definition
Heritable differences can also be called ?
Term
f2 generation
Definition
The offspring resulting from self-fertilization of f1 plants?
Term
Dominant
Definition
The form of each trait expressed in f1 plants
Term
Recessive
Definition
The form of the trait not seen in the f1 plants
Term
Genetics
Definition
The study of transmission and expression of genetic information
Term
Gene
Definition
Information for a trait passed from parent to offspring
Term
Allele
Definition
Alternate form of a gene?
Term
Genotype
Definition
Total set of alleles of an individual
Term
Punnet Square
Definition
Arrangement of possible alleles
Term
Phenotype
Definition
Outward appearance of an individual
Term
Principle of Segregation
Definition
Two alleles for a gene segregate during gamete formation and are rejoined at random, one from each parent, during fertilization
Term
Locus
Definition
segment of DNA that codes for some controlling function
Term
Loci
Definition
both the position of on the chromosome and type of gene controlling a character.
Term
Dihybrid cross
Definition
the f1 generation of a dihybrid cross shows only the dominant phenotypes for each trait. The f2 generation is produced by crossing members of the f1 generation with each other or allowing self - fertilization of the f1
Term
Monohybrid cross
Definition
Dna differs at 1 Locus on chromosome
Term
Dihybrid cross
Definition
Dna Differs at 2 loci on chromosomes
Term
Alleles of different loci distributed randomly into the gamete results in recombination.
Definition
What does the Principle of independent assortment state?
Term
Independent assortment
Definition
Orientation of homologous chromosomes on the metaphase plate determines how chromosomes are distributed
Term
Product rule
Definition
predicts combined probability of independent events
Term
sum rule
Definition
Predics combined probability of mutually exclusive events
Term
Linkage
Definition
Tendency for a group of genes on same chromosome to be inherited together
Term
Bacteriophages
Definition
Viruses that infect bacteria
Term
Purines
Definition
Adenine and guanine are also called?
Term
Pyrimidines
Definition
Thymine & Cytosine are also called?
Term
Nucleotide structure
Definition
This structure consists of "nitrogenous base attached to the 1 prime carbon of deoxyribose
Term
Nucleoside
Definition
Nitrogenous base + Pentose sugar =
Term
A-T G-C ratios are 1:1
Definition
Chargaffs rule states that?
Term
5 to 3
Definition
The chain of nucleotides has a _ to _ orientation (numbers)
Term
Bother daughter strands are all new molecules
Definition
The conservative view of replication states what?
Term
One daughter strand is all new. Other strand is parent strand
Definition
The semiconservative model of replication is what?
Term
Mix of parental & newly synthesized strand
Definition
The dipersive model of replication is what?
Term
Dna replication is a semi conservative process.
Definition
Out of the three, conservative, semiconservatives and dipersive models of meiosis, which one is the actual method in which dna replication happens.
Term
Initiation
Definition
Replication begins at an origin of replication, the process which starts this is called?
Term
Elongation
Definition
New strands of DNA are synthesized by DNA polymerase, this process is called?
Term
Termination
Definition
Replication is terminated to conserve energy, this process is called?
Term
origin of replication.
Definition
Replication begins at one "blank of blank" and proceeds in both directions around the chromsome
Term
Replisome
Definition
The macromolecular structure that assembles?
Term
DNA HELICASE and DNA Gyrase
Definition
The double helix of DNA is unwound by?
Term
primer
Definition
"blank" binds to template strand
Term
DNA polymerase 3
Definition
Which DNA polymerase is the main polymerase responsible for the majority of DNA synthesis
Term
Alkaponuria, which is a rare genetic disease that caused black pigment on eyes and urine.
Definition
Archbald Garrod studied what in 1902
Term
one gene- one enzyme hypothesis. Each enzyme of the arginine pathway was encoded by a seperate gene.
Definition
Beadle and tatum, proposed what in 1941?
Term
Central Dogma of Molecular Biology
Definition
The statement that information flows in one direction, is known as?
Term
Transcription
Definition
"blank" is the flow of information from dona to rna
Term
translation
Definition
"blank" is the flow of information from rna to proteins?
Term
codon
Definition
The set of 3 nucleotides that specify a particular amino acid is called a "?"
Term
reading frame
Definition
The distance between a start codon and a stop codon is known as the?
Term
stop codons
Definition
UAA, UGA, UAG are all known as
Term
Degenerate
Definition
The term used to describe several codons that code for the same amino acid
Term
template
Definition
Dna serves as a "blank" strand used to make RNA
Term
RNA Polymerase
Definition
The enzyme that syntehsizes RNA from the DNA template
Term
Messenger RNA
Definition
Protein making information is stored where?
Term
Transfer RNA
Definition
A folded single strand which caries a specific amino acid
Term
Ribosomal RNA
Definition
Folded, forms ribosomes
Term
towards
Definition
When something is moving "upstream" is it is moving towards or away from the 5 prime end?
Term
towards
Definition
When something is moving downstream, is it moving towards or away from the 3 prime end
Term
promoter
Definition
A DNA sequence for the binding of RNA polymerase is known as a
Term
4
Definition
Ribosomes have how many binding sites?
Term
P site/A site/E site
Definition
What are the binding spots in ribosomes called?
Term
True
Definition
The P site is where transfer RNA enters, true or false?
Term
P site, A site, E site.
Definition
The order of sites visited by TRNA is ?
Term
initiation factors
Definition
Proteins which become attached to a small subunit are called
Term
Initiator TRNA
Definition
First amino Acid attached to TRNA is called?
Term
False
Definition
Peptidyl Transferase is a protein?
Term
Wobble pairing
Definition
The allowing of less stringent pairing between the 3 prime base of the codon and the 5 prime base of the anticodon is called?
Term
Translocation
Definition
The process in which Ribosomes move down mRNA 1 codon, requires GTP
Term
bacteria
Definition
In "blank" Translation and transcription happen at the same time
Term
Ribosomes are outside the nucleus
Definition
Bacterial mRNA is translated as it is transcribed. Eukaryotes cannot do it because
Term
Pre-Mrna
Definition
Unmodified, precursor mRNA molecule
Term
5 prime cap
Definition
In order to protect the MRNA, what is added to the 5 prime end
Term
Polyadenylations
Definition
"blank" gets added to the 3 prime end
Term
Introns
Definition
Junk regions are also called?
Term
Exons
Definition
Expressed coding regions are also called?
Term
the retrovirus
Definition
Reverse transcriptase is a characteristic of ?
Term
Product rule
Definition
Predicts combined probability of independent events
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