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If organisms have similar genes, then they are closely related.
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∙ 14y ago
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What does the presence of Similar genes in very dissimilar organisms imply?
Common ancestor, or convergent evolution to the same function
What does the presence of similar DNA sequences in the genes in very dissimilar organisms imply?
It implies that the organism shares a common ancestor.
Biologist can compare amino-acid sequence of the same protein from two or more species sequences can be very similar or very different what do the similarities and differences tell us?
Similarities in amino acid sequences tell us the the genes coding for these proteins are similar. Similar genes are due to shared ancestry ie the organisms have evolved from a common ancestor in the past. Differences in amino acid sequence tell us that mutations have occurred in the genes since the organisms separated from the common ancestor. The bigger the differences, the longer the organisms have been separated.
Why do common patterns of genetics control development exist among animals?
They exist because all these genes have descended from the genes of common ancestors.
What are the two common names for the structure of DNA?
Genes and chorosomes
What evidence supports the common ancestry of dinosaurs?
Many of their genes are the same.
Related species have similar body structures because they inherited the same genes from a common what?
ancestor
What is homozygous and what is hetrozygous?
Homozygous: genes are similar Hetrozygous: genes are not similar
What evidence favors the coelacanth as the closest living relative of amphibians?
The evidence that favours the coelacanth as the closest living relative of amphibians is their resemblance with the lungfish. They seem to share similar genes in most aspects.Ê
What does the presence of Similar genes in very dissimilar organisms imply?
Common ancestor, or convergent evolution to the same function
What does the presence of similar DNA sequence in the genes in very dissimilar organisms imply?
It implies that the organism shares a common ancestor.
What does the presence of similar DNA sequences in the genes in very dissimilar organisms imply?
It implies that the organism shares a common ancestor.
What does the presence of similar genes in very dissimilar organisims imply?
It implies that the similar Genes are very, very Ancient.Edit: No, it doesn't. The genes can be fairly new, despite the organisms being very dissimilar. It implies that the organisms share a common ancestor, not that they're ancient. Please do not reply to questions if you have no idea what you're talking about.
What types of evidence do scientists use to place an organism on a phylogenic tree and what does that placemnt tell you?
They use dna for sure and they may or may not use similar specification of genes
Why are a similar number of genes required to make a worm and a human?
Because, in the very distant past, humans and worms had a common ancestor.
Why do common patterns of genetic control for development exist in animals?
They exist because all these genes have descended from the genes of common ancestors.
In what ways are homologous chromosomes similar?
They are similar in size shape , position of centromere and genes .Homologous chromosomes are similar in the pattern they are stained, their lengths, and most importantly they have genes of the for a certain characteristics in the same area.
