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Is the following sentence true or false all genes show simple patterns of dominant and recessive alleles?
False. Blood type genes have two dominant alleles (A and B), and one recessive (O). When a person gets one A allele and one B allele, they then have the blood type AB. Both are expressed equally. In other genes, a dominant allele might not be completely dominant, allowing the recessive allele to be partially expressed.
Are sperm and egg cells in humans Have either all dominant or all recessive versions of genes?
The sperm and egg sex cells (or gametes) have both recessive and dominant genes in them.
If an animal with 2 dominant genes for a trait has offspring with an animal with 2 recessive genes for same trait their offspring can only have what?
Their offspring will have dominant genes. However, if these offspring have offspring with an amimal with recessive genes, the recessive genes will show up.
Is it true that all genes show simple patterns of dominant and recessive allleles?
No, it is not true that all genes show simple patterns of dominant and recessive alleles. When Mendel did his studies on peas, he was lucky in that the genes he worked with showed those patterns. Many genes are much more complex and often involve more than one gene. Many genes show intermediate expressions between dominant and recessive.
What color will the kittens be if the female is calico and the male is black?
it all depends on the dominant genes. If the female is dominant then her color with some of the male, and visa versa.
Father with homozygous genes for dominant trait?
This means that the father has two copies of the dominant allele for a particular trait. As a result, all of his offspring will inherit at least one copy of the dominant allele from him. This implies that all his offspring will either express the dominant trait or be carriers of the dominant allele.
What does it mean to be a dominant gene?
Genes which take precedence over their opposite number - recessive genes. i.e. when the genetic make-up of an organism is being determined the dominant gene will out-rank any recessive gene and more often than not be the determinant one.
What causes weakness in offspring of genetically similar parents?
It's all genetics, genetics are like light switches, some may be turned on which will be the dominant genes and others will be turned off. So the parent that has a weakness' genes will be the dominant genes so the offspring will therefore be weak or have the same/similar weaknesses.
Why do most people have brown hair?
It's all in the Genes. The dominant color gene allele for hair is brown.
What crosses will result in dominant phenotype offspring?
Don't give us the options then!! If one parent had 2 dominant genes then all offspring would have dominant phenotype, the same goes for both parents having dominant genes.
Whether an allele is dominant or recessive depends on?
its random really, some genes are recessive, and some are dominant if a gene is dominant than it will be expressed if it is present the only way for a recessive gene to be expressed is if there are two alleles for that traitIt's not random at all. There can be many reasons. One classic reason is given here. First, know that most genes encode proteins. A dominant gene (really, an allele) may encode for a functional protein while a recessive gene may encode for a non-functional proteindominant genes contain genes that are strong and recessive genes contain genes that are weak.
What function do genes serve for living organisms?
Genes provide the instructions for making proteins, which are essential for the structure, function, and regulation of the body's cells. Genes also play a role in determining traits and characteristics, such as eye color, blood type, and susceptibility to certain diseases. Overall, genes are crucial for the growth, development, and survival of living organisms.
