0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What does it mean if two different animals possess homologous structures?
Homologous structures are similar evolutionary structures that evolved in different organisms that were used for the same purpose long ago but are no longer in use
What does differential gene expression mean?
The process by which different cells express different genes depending on their needs is called differential gene expression
Why do embryos of different animals look similar?
Depending on what animal because animals are very different from one another, but that would mean you are considering humans not animals.
What are some alternative forms of genes?
If by genes, you mean DNA then the answer would be alelles.
What is an explanation of What independent assortment mean?
Genes passed to offspring that code for a particular trait are not linked to different genes which code for different traits. ie. The gene for brown eyes assorts independently to the offspring and would not be effected by the gene coding for the trait of brown hair, for example.
What does it mean when two organisms are very similar?
What does it mean when two organisms are very similar.
What does non-genetic mean?
Not related to DNA. Genes are what are inherited from your parents, which is why you have similar traits to your parents. Genes are made from DNA.
How many genes do animals have?
Different animals have different numbers of genes (and chromosomes). The exact number of genes that animals have has not been proven for many species, so estimates have been made. It is estimated that humans and mice have approximately 20,000 genes, roundworms have approximately 13,000 genes and yeast has around 6,000 genes. It should be noted that, similar to chromosome number, a larger number of genes does not necessarily mean the organism is more complex - for example rice has over 46,000 genes.
What does it mean if two different animals possess homologous structures?
Homologous structures are similar evolutionary structures that evolved in different organisms that were used for the same purpose long ago but are no longer in use
What is the rule of genes in evolution?
The " rule " of genes? An allele is a different molecular form of the same gene. So, the evolutionary definition. Evolution is the change in allele frequency over time in a population of organisms. That is their " role " if that is what you mean. They are the molecules that are inherited, thus causing changes over time in populations, which is evolution.
What does the prefix homo mean in biology?
In biology, the prefix "homo-" means "same" or "similar." It is often used to indicate similarity or sameness among organisms or structures, such as in the term "homologous structures" to describe similar structures in different species.
How many genes are there?
Your question is vague - I do not know what you mean by "there"? Assuming you are referring to people, it is estimated that there are around 23,000 genes. But other species will have entirely different numbers.
What does it mean when organisms evolve?
they change in ways or mutate in to a different form.
What does biologically fit organisms mean?
the organisms can effectively survive and reproduce to make sure that its genetic traits are passed on. Those that aren't biologically fit are not able to reproduce effectively and eventually their genes pass out of the gene pool.
Do more-complex organisms always have more chromosomes than simpler organisms do.?
Chromosomes contain the genes or the DNA of all organisms. Being more complex, does not mean that you have more chromosomes, for example: a human being has 48 chromosomes while chickens and dogs both have 78.
What is the term for words from different languages that look similar and mean the same thing?
The term for words from different languages that look similar and mean the same thing is "cognates."
What does differential gene expression mean?
The process by which different cells express different genes depending on their needs is called differential gene expression
