How do chromosomes affect development?

How are chromosomes important for growth and development?

Genes are passed from parent to child making each of us unique. In other words, chromosomes make you, you. Having the correct number of chromosomes is critically important to having a successful pregnancy. If your embryo does not have the correct number of chromosomes then your baby may fail to develop properly.

Which chromosome is responsible for growth?

Both of the sex chromosomes have been implicated in height determination. For example, subjects with Turner syndrome who lack one X chromosome (45,X) are typically short (1). In men, the Y chromosome is important for height (9).

Why are chromosomes so important?

The fundamental importance of chromosomes is that they contain DNA, or deoxyribonucleic acid, the substance that contains every organism’s genetic code. When a cell divides, its chromosomes must first replicate.

What is the importance of chromosomes in our body?

Chromosomes are thread-like structures in which DNA is tightly packaged within the nucleus. DNA is coiled around proteins called histones, which provide the structural support. Chromosomes help ensure that DNA is replicated and distributed appropriately during cell division.

How does a gene affect the traits of a human?

Genes are instructions that dictate how a person’s body is made, in the same way that blueprints are instructions to build a house. Information from genes let the body know what characteristics a person will have, like if they will have hairy or hairless ears and/or a small or big chin.

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How do genes control traits?

The trait is controlled by the genes, which produce a particular protein. … Genes are segments of DNA that carry information that is used to make RNA, which is then used to make protein. Each gene has two alleles, which tell the cell how to generate protein for trait expression.

What happens if you have 45 chromosomes?

Turner syndrome (TS), also known as 45,X, or 45,X0, is a genetic condition in which a female is partly or completely missing an X chromosome.