XO type of sex determination is found in________.a)Grasshopperb)Elephantc)Human beingsd)DogCorrect answer is option 'A'. Can you explain this answer?

Question

Answer

Elephant , human beings and dog all are mammals which shows
XX-XY
Whereas Grasshopper and others like cricket cockroaches and other insects shows XO-XX type.

Answer

In this system, there is only one sex chromosome, referred to as X. Males only have one X chromosome (X0), while females have two (XX). The zero (sometimes, the letter O) signifies the lack of a second X. Maternal gametes always contain an X chromosome, so the sex of the animals’ offspring depends on whether a sex chromosome is present in the male gamete. Its sperm normally contain either one X chromosome or no sex chromosomes at all.

Answer

XO type of sex determination is found in grasshopper...where as in remaining it is XY type of sex determination

Answer

XO Type of Sex Determination in Grasshopper

Grasshoppers belong to the class Insecta and phylum Arthropoda. The sex determination system in grasshoppers is different from that of mammals. In mammals, sex is determined by the presence or absence of the Y chromosome, while in grasshoppers, it is determined by the number of X chromosomes.

XO Sex Determination System

The XO sex determination system is found in grasshoppers. In this system, females have two X chromosomes, while males have only one X chromosome and no Y chromosome. Therefore, males are designated as XO, and females are XX.

Sex Determination in Grasshoppers

In grasshoppers, sex is determined at the time of fertilization. If a sperm carrying an X chromosome fertilizes an egg, the resulting individual will be female (XX). If a sperm without a chromosome fertilizes an egg, the resulting individual will be male (XO).

Advantages of XO Sex Determination System

The XO sex determination system has some advantages over other sex determination systems. For example:

- It is energy-efficient because females have two X chromosomes, which means they need more resources to maintain their larger size and reproductive organs.

- It allows for rapid adaptation to changing environmental conditions because the sex ratio can be adjusted quickly by changing the frequency of X-bearing sperm.

- It ensures that all offspring are genetically related to the mother because males pass on only one copy of their genes to their offspring.

Conclusion

In conclusion, the XO sex determination system is found in grasshoppers, where sex is determined by the number of X chromosomes. The system has several advantages over other sex determination systems and allows for rapid adaptation to changing environmental conditions.

Answer

XO type of sex determination in Grasshopper

Grasshoppers are insects that belong to the order Orthoptera and have a unique type of sex determination known as XO type. This sex determination system is different from the conventional XY type found in humans and other mammals.

What is the XO type of sex determination?

In the XO type of sex determination, male grasshoppers have only one sex chromosome, which is the X chromosome. Female grasshoppers, on the other hand, have two sex chromosomes, one X and one Y chromosome. This means that the sex of the offspring is determined by the presence or absence of the Y chromosome.

If the sperm that fertilizes the egg contains a Y chromosome, the offspring will develop into a female. However, if the sperm lacks a Y chromosome, the offspring will develop into a male. In other words, the presence of a Y chromosome is necessary for the development of female offspring.

Advantages of XO type of sex determination in Grasshopper

The XO type of sex determination system has several advantages for grasshoppers. These include:

1. Efficient use of resources: Since male grasshoppers have only one sex chromosome, they require fewer resources for their development. This means that the energy and nutrients that would have been used to develop the Y chromosome can be used for other metabolic processes.

2. Faster reproduction: Female grasshoppers can produce offspring more quickly since they do not have to wait for the production of sperm by males. This allows them to take advantage of favorable environmental conditions and rapidly increase their population size.

3. Reduced competition: Since males are produced less frequently than females, there is less competition among males for resources and mates. This allows males to focus their energy on attracting females and reproducing.

In summary, the XO type of sex determination system in grasshoppers is a unique and efficient way of determining sex. It allows for the rapid reproduction and efficient use of resources, which are important for the survival and success of these insects in their environment.

Answer

XO type of sex determination is found in grasshoppers. The male grasshopper carry a single sex chromosome (an X chromosome ) and are considered as XO which is the heterogametic sex because they produce two different types of sperm cell that are with X or without X chromosome. Female grasshoppers carry the XX type of sex chromosomes...

Answer

XO Type of Sex Determination in Grasshoppers

Grasshoppers are insects that belong to the order Orthoptera. They reproduce sexually and have a unique method of sex determination known as XO type of sex determination.

What is XO type of sex determination?

In XO type of sex determination, females have two X chromosomes (XX), while males have only one X chromosome (XO). This is in contrast to the XY type of sex determination found in humans and many other animals, where males have one X and one Y chromosome, while females have two X chromosomes.

How does XO type of sex determination work in grasshoppers?

In grasshoppers, the sex of the offspring is determined by the presence or absence of a particular chromosome called the sex chromosome. Females have two X chromosomes, while males have only one X chromosome.

During fertilization, the egg contributes one X chromosome, while the sperm can contribute either an X or a Y chromosome. If the sperm carries an X chromosome, the resulting offspring will be female (XX). However, if the sperm carries a Y chromosome, the resulting offspring will be male (XO).

Thus, in grasshoppers, the sex of the offspring is determined by the father rather than the mother. This is in contrast to mammals, where the sex of the offspring is determined by the mother.

Conclusion

In conclusion, XO type of sex determination is found in grasshoppers, where females have two X chromosomes and males have only one X chromosome. This unique method of sex determination is different from the XY type of sex determination found in humans and many other animals.

Answer

XO sex determination is found in grasshopper

Answer

Grasshopper

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