what are the two sex chromosomes found in females? males? course hero

The main differences between males and females are the X and Y chromosomes. Among humans, two X chromosomes

make a woman, and an X and a Y chromosome make a man. However, there are other differentiating features between these chromosomes.

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What is a sex chromosome Quizlet?

Sex Chromosomes Definition Sex chromosomes are chromosomes that determine whether the individual is male or female. Though these two chromosomes pair with each other during meiosis, there is usually very minimal homology or recombination between them, primarily because of a large difference in their genetic content and size.

What are the two types of chromosomes that determine gender?

​Sex Chromosome. A sex chromosome is a type of chromosome that participates in sex determination. Humans and most other mammals have two sex chromosomes, the X and the Y. Females have two X chromosomes in their cells, while males have both X and a Y chromosomes in their cells.

How does evolution of sex chromosomes occur?

Evolution of sex chromosomes is thought to arise through mutation of autosomes that carry sex determination genes. At some point, when there is clustering of genes for sex determination on one of the two autosomes, there is a suppression of recombination to ensure that the gene cluster is inherited in one block.

What is the homology between chromosomes in meiosis?

Though these two chromosomes pair with each other during meiosis, there is usually very minimal homology or recombination between them, primarily because of a large difference in their genetic content and size. Often one chromosome is smaller, and appears to retain only those genes that are necessary for sex determination.

What are the 2 gender chromosomes in a female?

Two of the chromosomes (the X and the Y chromosome) determine your sex as male or female when you are born. They are called sex chromosomes: Females have 2 X chromosomes. Males have 1 X and 1 Y chromosome.

What kind of general information can you infer from karyotypes?

Karyotypes can reveal changes in chromosome number associated with aneuploid conditions, such as trisomy 21 (Down syndrome). Careful analysis of karyotypes can also reveal more subtle structural changes, such as chromosomal deletions, duplications, translocations, or inversions.

Why are karyotypes useful diagrams What can they show us about an organism?

karyotypes allow you to study differences in chromosome shape, structure, and size. by looking at karyotypes you should be able to determine what? one thing you should be able to do by looking at a karyotype is determine the sex/gender of the organism.

Can a genetic disease such as nf1 be diagnosed with a karyotype Why or why not?

Single gene disorders are conditions that are caused by a change in a single gene. Because there are thousands of genes, there are thousands of single gene disorders. This group of disorders cannot be diagnosed by a karyotype.

Why are sex chromosomes interesting?

It's kind of a combination of many of those genes. In fact, the sex chromosomes are quite interesting, not just because of what they cause or what their role is, but also because they're so different from the other chromosomes that we have in the complete human genome. Carla Easter, Ph.D.

What is the difference between egg and sperm?

Egg cells all contain an X chromosome, while sperm cells contain an X or Y chromosome. This arrangement means that it is the male that determines the sex of the offspring when fertilization occurs.

Is XX a male or female chromosome?

In the case of humans, this happens to be the X and the Y chromosomes. So as you may recall, if you are XX, you are female. If you are XY, you are male. And in the case of other mammals, this is often similar, although they may have different names for those chromosomes as well.