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What results if a fragment of a chromosome breaks off and then reattaches to the original chromosome at the same place but in the reverse direction?
This is a type of chromosomal rearrangement called an inversion. Inversions do not typically result in the loss or gain of genetic material, but can affect gene expression by disrupting the normal order and orientation of genes. Inversions can be inherited or arise spontaneously during cell division.
What does a replicate chromosome consist of?
A replicated chromosome consists of an exact copy (assuming no mutations) of the original chromosome, which is composed of DNA and proteins called histones.
Does a doubled chromosome have one original and one copy?
TRUE
One of the two homologous strands of a chromosome?
A homologous strand of a chromosome is a duplicated copy of the original chromosome, formed during DNA replication. It contains the same genetic information as the original chromosome and is held together by a centromere. Homologous chromosomes play a key role in meiosis, where they pair up and exchange genetic material during crossing over.
What is an original chromosome and its copy called?
An original chromosome is called a homologous chromosome, and its copy is called a sister chromatid. Homologous chromosomes have the same genes in the same order but may have different alleles, while sister chromatids are identical copies produced during DNA replication.
What results if a fragment of a chromosome breaks off and then reattaches to the original chromosome at the same place but in the reverse direction?
This is a type of chromosomal rearrangement called an inversion. Inversions do not typically result in the loss or gain of genetic material, but can affect gene expression by disrupting the normal order and orientation of genes. Inversions can be inherited or arise spontaneously during cell division.
What are 4 types of chromosome structural changes?
The four types of alterations of chromosome structure are deletion, duplication, inversion, and reciprocal translocation. Deletion is the loss of one or more nucleotides from a gene by mutation; the loss of a fragment of a chromosome. Duplication is repition of a part of a chromosome resulting from fusion with a fragment froma homologous chromosome. Duplication can result from an error in meiosis or from mutagenesis. Inversion is a change in a chromosomeresulting from reattachment of a chromosome fragment to the original chromosome, but in a reverse direction. Mutagens and errors during mesosis can cause inversions. Translocation is the attachment of a chromosomal fragment to a nonhomologous chromosome.
When an original chromosome copies it is said to?
synthesize
A person who is related to certain relative?
This is a sentence fragment and contains no question. Please rephrase.12/23/10--A comma after "fragment" was omitted from the original answer.
How many DNAmolecules make up each original chromosome?
A chromosome is formed from a single DNA molecule.
What does a replicate chromosome consist of?
A replicated chromosome consists of an exact copy (assuming no mutations) of the original chromosome, which is composed of DNA and proteins called histones.
Does a doubled chromosome have one original and one copy?
TRUE
What are the ratings and certificates for Fragment of Fear - 1970?
Fragment of Fear - 1970 is rated/received certificates of: Finland:K-16 Iceland:12 Norway:16 UK:AA (original rating) UK:15 (video rating) USA:PG USA:GP (original rating)
What does a chromosomes consists of?
A replicated chromosome consists of an exact copy (assuming no mutations) of the original chromosome, which is composed of DNA and proteins called histones.
One of the two homologous strands of a chromosome?
A homologous strand of a chromosome is a duplicated copy of the original chromosome, formed during DNA replication. It contains the same genetic information as the original chromosome and is held together by a centromere. Homologous chromosomes play a key role in meiosis, where they pair up and exchange genetic material during crossing over.
What is an original chromosome and its copy called?
An original chromosome is called a homologous chromosome, and its copy is called a sister chromatid. Homologous chromosomes have the same genes in the same order but may have different alleles, while sister chromatids are identical copies produced during DNA replication.
Do mitosis and meosis have the same chromosome number?
No, mitosis and meiosis do not have the same chromosome number in their resulting cells. Mitosis produces two daughter cells that each have the same chromosome number as the original cell (diploid in humans, for example). In contrast, meiosis results in four daughter cells, each with half the chromosome number of the original cell (haploid in humans), which is essential for sexual reproduction.
