Gene Regulation
This is constitutionally expressed by LacI and binds to LacO of the lac operon to inhibit transcription.
Lac Repressor
A chromosome duplicates its genetic material during this phase of interphase
Synthesis phase, S phase
give the genotypic ratios of the following cross Aa x Aa
1 AA: 2 Aa: 1 aa
This type of cell signalling targets itself and nearby cells
autocrine signalling
all viruses have these 2 things
Genetic material and capsid
when mRNA is made but no protein is made is an example if this type of regulation
Translational regulation
This is also known as cytoplasmic division, the physical cytoplasmic seperation of 2 cells
Cytokinesis
A cross occurs between blue flowers and red flowers. Some of the offspring are red, some are blue, and some are purple. This is an example of what?
Incomplete Domiance
This signal molecule type typically travels long distances through the bloodstream to target cells.
hormone
Covid-19 has this type of genetic material.
ssRNA
This portion of the promoter region on a eukaryotic gene is located -25 bases away from the transcriptional start site and is where RNA polymerase will bind
TATA box
Meiosis results in these types of cells
4 different Haploid cells
A cross occurs between one mouse that is black and one that is brown. The offspring are black, brown, and black and brown. This is an example of what kind of inheritance?
Codominance
This disease is caused by uncontrolled cell division and a lack of DNA repair enzymes
Cancer
Many prokaryotes have rings of DNA called _____, which we often use as vectors for genetic engineering.
plasmids
This is the less condensed form of chromatin and allows for gene expression. Gene is turned on.
Euchromatin
Sister chromatids align in the middle of the cell at the Metaphase plate during these processes.
Mitosis and Meiosis II
A Mother with A blood type has a child with B blood type. What is the Mother’s genotype?
IA i
These receptors are found in the plasma membrane because their ligands are large or hydrophilic.
surface receptors
In this cycle, viral replication immediately occurs, and viruses are released after lysozyme disrupts the cell wall.
Lytic cycle
describe what will bind to the lac operon if there is HI glucose and LO lactose. will mRNA be made?
Lac repressor binds, no mRNA is not made
homologous chromosomes separate during this phase of meisis I.
anaphase I
Hemophilia is a recessive, X-linked condition. A man and a woman who do not have the disease have children, the woman knows she is heterozygous for the hemophilia allele. If they have a son what are the odds that he will have hemophilia?
1/2 (50%)
Neurotransmitters being released from a nerve cell and binding to another nerve cell or a muscle cell would be an example of this type of cell communication.
Paracrine signalling
this type of virus has RNA that acts like a template to be copied into DNA. Ex. HIV
Retrovirus