Question

A malehuman process 46 chromosomes and of a female human process 46 chromosomes. predict the chance of offspring of the both this individual being male or female by using a diagrammatic representation.​

Answer 1

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A human male has two sex chromosomes, the X and the Y. Unlike the 444444 autosomes (non-sex chromosomes), the X and Y don’t carry the same genes and aren’t considered homologous.

Instead of an X and a Y, a human female has two X chromosomes. These X chromosomes do form a bona fide homologous pair.

Because sex chromosomes don’t always come in homologous pairs, the genes they carry show unique, distinctive patterns of inheritance.

Sex chromosomes in humans

Human X and Y chromosomes determine the biological sex of a person, with XX specifying female and XY specifying male. Although the Y chromosome contains a small region of similarity to the X chromosome so that they can pair during meiosis, the Y chromosome is much shorter and contains many fewer genes.

To put some numbers to it, the X chromosome has about 800-900800−900800, minus, 900 protein-coding genes with a wide variety of functions, while the Y chromosome has just 60-7060−7060, minus, 70 protein-coding genes, about half of which are active only in the testes (sperm-producing organs).

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Answer 2

Sex determination

Inheritance of biological sex

Human body cells have 23 pairs of chromosomes in the nucleus. Twenty two pairs are known as autosomes, and control characteristics, but one pair carries genes that determine sex - whether offspring are male or female:

males have two different sex chromosomes, X Y

females have two X chromosomes, XX

Chromosomes from a male

These diagrams are known as human karyotypes, and show all the chromosomes aligned in pairs. The blue box shows the two sex chromosomes - these are different sizes, therefore an X (larger chromosome) and a Y (smaller one).

Find the picture in the attachment(1st attachment)

Chromosomes from a female

The red box shows the two sex chromosomes - these are the same size, both two X larger chromosomes.

Find the picture below(2nd attachment)

Genetic diagram

A genetic diagram,like a Punnett square, shows how alleles may combine in zygotes. The diagram below shows how biological sex is inherited.

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