These structures represent the second level of compaction and are found during interphase
I am found on the 2' carbon in DNA
One origin of DNA replication creates ___________replication forks
Chromosomal _____ can lead to variation in chromosome composition and arrangement
Monosomies and trisomies arise when this event happens in meiosis
This can help detect chromosomal abnormalities and chromosome numbers
This term is used to explain the opposite orientations of the two DNA strands
These regions allow for pairing of the X and Y chromosomes during meiosis
I am found in RNA but not DNA
Without this gene, testes won't develop
These type of transcription factors bind to the core promoter and are needed for basal transcription
This type of inversion does not involve the centromere
The term that is used to describe how one amino acid can be coded for by multiple codons
The SRY gene is not normally found in...
These are the first level of compaction and they are made up of DNA and histone proteins
These sequences are excised from the mRNA transcript before it is transported out of the nucleus
What is the percent chance that a women who is a Robertsonian translocation carrier will have a child with Translocation Down Syndrome (assume mate produced normal gametes)
Processing of the mRNA transcript occurs in the ___________.
Verticales
I am made up of half euchromatin and half heterochromatin
Females are often considered to be ____________ with respect to X inactivation
The DNA strand that has the same directionality as the mRNA strand
This type of chromosomal abnormality tends to be less harmful than a deletion
47, XXY
The number of Barr bodies found in the somatic cells of females with XXX syndrome
Fragile X and Huntington Disease are examples of _____ repeat disorders
The gain or loss of 1 or more chromosomes
The XIST gene is expressed on this X chromsome
X inactivation occurs randomly in somatic cells during early embryonic development. Once these patterns are established, all descendent cells maintain the same inactivation patterns. This is called the _________(hint: two words)
The _________ strand follows the same direction as the replication fork
The sequence that signals for termination of transcription
The extra 21 chromosome in Trisomy 21 typically is inherited from
Put these the following three components together (nitrogenous base, pentose sugar, and phosphate group), and you have created a ______
Unlike DNA replication, DNA transcription does not require a ________ to start creating the new strand
The incidence of Down Syndrome increases with increasing maternal ________
Coding portions of a gene
Messenger RNA is read three bases at a time. These three bases are called a ______
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It prints on two pages.
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