Quiz # 2 on lectures 3, 4, and including Chapter 2
1. Difference occurs in the sequence of long chain molecules and becomes information in biological organisms. ‘Life’ assembles itself into chains:
(A) of RNA
(B) all of the answers are correct
(C) of DNA
(D) of protein
(E) none of...
DNA so that daughter cells will each have a full set of information for controlling the cells’ activities. The replication of eukaryotic cells is described by the cell cycle. In a typical multicellular eukaryotic organism, some cells will be actively dividing (in the cell cycle), such as skin cells...
|Annealing |The term used to describe hydrogen-bond formation between complementary base pairs when sections of |
| |single-stranded DNA or RNA join together. Annealing is seen when complementary sticky...
functions There are three types of non-genetic RNA. (1) mRNA or messenger RNA, (2) rRNA or ribosomal RNA and (3) tRNA or transfer RNA
(1) mRNA (Messenger RNA) : This is called messenger RNA because it carries information for protein synthesis from the DNA to the ribosomes in the cytoplasm (the...
Dominant – the trait expressed.
Down’s Syndrome – genetic disease resulting from having an extra chromosome 21.
DNA – transmits hereditary information and controls cellular activities.
Duplication – where a portion of a chromosome is repeated..
E) DNA polymerase
38) Which of the following options best depicts the flow of information when a gene directs the synthesis of a cellular component?
A) RNA to DNA to RNA to protein
B) DNA to RNA to protein
C) protein to RNA to DNA
D) DNA to amino acid to RNA to protein
E) DNA to tRNA to mRNA...
understand the importance of genetic variation in species;
understand the concept of the gene as it pertains to DNA, chromosomes and allele;.
understand the role of genes and heredity in determining how traits can be altered and inherited by
asexual and sexual means;
gene for eachtrait.
Concept 3. Genes don't blend.
In general, offspring appear to be a mixture of parental characteristics. However, Mendel found that this is not true for the pea plant traits that he chose to study. Pure-bred pea plants when crossed did not produce offspring with blended traits...
the sequence AAGCTC, transcription will result in a(n) ___
-single RNA strand with the sequence UUCGAG
Who discovered the structure of DNA?
-Watson and Crick
Viruses that infect bacteria are ___
+++The figure below shows the flow of genetic information in a eukaryotic cell. The...
structure of DNA.
5. Describe the process of DNA replication.
The Flow of Genetic Information from DNA to RNA to Protein
6. Define transcription and translation. Explain why the hypothesis “one gene-one enzyme” is not correct.
7. Explain how the language of DNA directs the...
* Stored information in a cell can be passed from
* Cell to cell, generation to generation
* The process of copying a DNA molecule to form identical DNA molecules
* complementary base pairing allows each strand of the original DNA molecule to serve as a template for creating a new strand...
means that on separation each strand can act as a template for the copying or replication of genetic coding of the complementary strand.
Below is a diagram of the basic stages involved in semi-conservative DNA replication:
In higher organisms, such as humans, the efficiency of DNA replication...
in the 3’ to 5’ strand on the template strand. Bring in the free nucleotides that you made to base-pair with each of the parental strands until you have two complete, double-stranded DNA molecules.
5. Answer questions 3 and 4 on your In-Lab Report Sheet using the information in your text and lecture...
Allele – one of two or more versions of a gene
-different alleles can result in different observable phenotypic traits
-eachtrait has 2 alleles
-one allele/chromosome for diploid organisms
-genetic variations in alleles can result in differences, also can be...
arteries that bring blood into each tube, and veins carry blood away from them .
the penis limp or erect, depending on flow of blood.
Direct mechanical stimulus or erectlie centers(visual, olfactory, tactile) in cns
ANS stimulates penile neurons to release Acetile choline Ach...
DNA allows for the properties of life to be maintained and passed from generation to generation
Eukaryotic chromosomes are made of chromatin. Chromatin is the complex of DNA and associated proteins that maintaining structure for gene activity and replication. Each single chromosome contains...
, sex-linked genes and polygenes.
The physical traits are those that are expressed and what makes every individual an 'individual'. These genes reside on specific segments of the DNA. Each gene is grouped to form a chromosome and each chromosome is found in the nucleus of the cell. There are two...
* Replication ends when products from the bubbles merge with each other
* DNA replication occurs in the 5’---> 3’ direction
* Replication is continuous on the 3’---> 5’ template
* Replication is discontinuous on the 5’---> 3’ template, forming short segments...
Selective breeding - the process of breeding plants and animals for particular genetic traits.
* 20 amino acids
* 64 different triplet codes
DNA to Protein:
DNA carries the genetic information of a cell and consists of thousands of genes. Each gene serves as...
Why is protein targeting important?
What is the secretory pathway?
Unit 2: Informationflow Regulation
There are 4 types of regulation studied in class. List all 4 types and describe what happens in each/ why they are important.
Describe the role of each of the following in the initiation of...