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Why are genetic diseases carried by genes on the X chromosome more common in male offspring than female offspring?
Because in males they have only 1 X chromosome. The other one is Y.
But in females they have 2 XX chromosomes so the chance that X chromosome will carry disease to cause illness is lower.
Example: lets say xx (recesssive) phenotype makes illness, whereas XX (dominant) is healthy.
A woman can have XX, Xx, xx right? Since Xx is a carrier and XX is healthy you wont see the illness. only xx can make illness. 1/3 chances she is sick.
However in males they have XY. so he can only have either XY or xY. No carrier form is present. The chances he will be sick is %50.
got it?
Im a genetic engineer and molecular biolog so count on me :)
What else can I help you with?
Genetic information is carried from the chromosome to the ribosome by the?
Messenger RNA.
What is a function of chromosomes?
A chromosome is transferred from parent to offspring and its purpose is to transport genetic material to the cell of the offspring
How do chromosome pairs contribute to genetic inheritance and variation in offspring?
Chromosome pairs contain genes that determine traits in offspring. During reproduction, each parent contributes one chromosome from each pair, creating genetic variation in the offspring. This process allows for a mix of traits from both parents to be passed on to the next generation.
What kind of conditions is carried on a chromosome other than the sex chromosome?
This would be just a genetic or inherited condition.
What percentage of human offspring receive a Y chromosome from their father?
Approximately 50% of human offspring receive a Y chromosome from their father. This results in the development of male offspring with a typical genetic makeup of XY.
What are the causes of heredity diseases?
Heredity diseases are caused by inherited genetic mutations passed down from parents to their offspring. These mutations can affect the structure or function of proteins in the body, leading to various health conditions. Factors such as environmental influences and lifestyle choices can also impact the severity or expression of heredity diseases.
Are there characteristic attached to the sex chromosomes other than gender?
Genetic diseases are often carried on the X chromosome. For example, hemophilia or colorblindness. Also, there are genes needed for the development of a fetus on the X chromosome. Scientists don't know their location, but they do know that a baby cannot be born without an X chromosome.
What is the process by which offspring inherit one chromosome from each parent to form a pair of chromosomes?
The process by which offspring inherit one chromosome from each parent to form a pair of chromosomes is called genetic recombination. During this process, genetic material from the mother and father combines to create a unique set of chromosomes in the offspring.
What is the DNA sequence of an entire chromosome affected by?
The DNA sequence of an entire chromosome affected by a mutation would have specific changes in the sequence of nucleotide bases. These changes can vary in size and location, leading to alterations in the genetic information carried by that chromosome, which can impact gene expression and protein production. This alteration can result in genetic disorders or diseases.
What is it called when one chromosome breaks off and is added to a different chromosome?
translocation i'm doing the same worksheet for my finals study guide, and in my book it discussed this.
If a genetic disorder is carried on a recessive gene which if any will have the disorder?
If a genetic disorder is carried on a recessive gene, offspring will only have the disorder if both parents have the recessive gene.
How does something pass its characteristics to its offspring?
By the combination or recombination of genetic traits carried on its DNA
