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The way we grow and develop is determined by genes on the chromosomes which we receive from our parents in the egg and sperm.
Individual genes contain 'recipes' for proteins. Many proteins are enzymes which control the making of virtually all of the molecules in the body, including hair, skin, eyes etc. Therefore, because we inherit these 'recipes' from our parents, characteristics such as hair, eye and skin colour will often be the same as our parents.
Chromosomes are paired (each human has 46 chromosomes or 23 pairs) The genes within them are therefore also paired.
If our parents have different traits, for example, if the Mother has ginger hair and the Father has Brown hair, then what is known as the dominant gene will suppress the recessive gene. In this case, the gene which determines ginger hair is recessive and the gene which determines brown hair is dominant. Therefore, the child will have brown hair. In order for the ginger trait to be 'expressed' the pair of genes or alleles must contain two of the recessive ginger genes.
This process is known as heredity. It is through heredity that humans have evolved, by passing on individual traits. Charles Darwin came up with the theory of 'survival of the fittest' In other words, individuals with better traits (eg. faster runners) would survive, whilst the slower runners wouldn't. This meant that only the better traits would be passed on to the next generation, and the species as a whole would gradually become stronger and better adapted to their environment.
What else can I help you with?
How is a human different from a human?
DNA Makes Us Different Than Each Other.Everyone Has Its Own DNA,Which Creates By Mixing Parents' Characteristics.That's Why All Of Us Are Different.
The Field family lives in Miami. The mother was born in the US to Cuban parents and the father was born in the United states to American parents of English descent. The Field children speak both spani?
The Field family lives in Miami. The mother was born in the US to Cuban parents and the father was born in the US to American parents of English descent. The Field children speak both Spanish and English.
What signals tell us when to eat and when to stop eating?
Hunger signals like stomach growling and low energy levels tell us when to eat, while feeling full and satisfied tells us when to stop eating. Hormones like ghrelin and leptin also play a role in regulating appetite and signaling hunger and satiety. Eating mindfully and paying attention to these signals can help us maintain a healthy relationship with food.
What are some characteristics that can be passed on from parents to young, what are some that cannot be passed on?
Parents pass characteristics such as hair color, nose shape, and skin color to their offspring. Not all of the parents' characteristics will appear in the offspring, but the characteristics that are more likely to appear can be predicted. Examples of non-inherited traits include table manners, greeting customs, a preference for certain types of foods, and parenting skills.
What do faces look like if you have prosopagnosia?
People with prosopagnosia have difficulty recognizing faces, including familiar faces like friends and family members. They may rely on other cues such as clothing, hairstyle, or voice to identify people. This condition can make social interactions challenging and lead to feelings of isolation.
How does dare help us?
it does not it makes u look like a fool
Why our parents love us?
because we are his childern and they look after us
What makes an American facts?
You can be born in US territory, have parents who are US citizens or become a naturalized citizen.
What makes us look Asian?
I personally think that our eyes nose and eyebrows make us look Asian.
How can you make a sentence with the word jovial?
We always like when our parents invite Uncle John to dinner because he's so jovial and always makes us laugh.
How great is the need for foster parents in the us?
it is very great to foster parents because not everyone in the world has parents so foster parents look after those children.
Why do we now have streach in your shirts?
because it makes us look skinnier
Who makes titan tools?
They are made by Titan-US at Renton, Washington. I've never tried these, but they look like really well made tools.
How do you spell the noise a dolphin makes?
How you did: The dolphin made a *the noise a dolphin makes* as it bobbed out of the water to look at us.
Do baby red pandas look like their parents?
All animals tend to have features of both the mother and father just like us!It may have it's mothers eyes and his fathers birth mark!
Who makes Titan power tools?
They are made by Titan-US at Renton, Washington. I've never tried these, but they look like really well made tools.
Why does Wyoming capitol look like us capitol?
Wyoming's people wanted it to look like the US. capitol; it was designed that way(:
