analogous
They are both mammals
whales and dolphins both have fins, but dolphins are much smaller than whales
Homologous chromosomes are two sister chomatids stuck together with cohesins forming a tetrad. They have the same genes but not necissarily the same alleles, so they could carry hair color, one with brown the other with blonde. So, homologous chromosomes share the same gene.
what is the similarities between the ulna and the radius
similarities
pickles :3
pickles :3
Homologous = same origin, different function (arms vs. wings) Analogous = same function, different origin (panda thumb)
There are a few different similarities between the wing of a butterfly and the wing of a bat. Both are used to fly for example.
Homologous organs have similar embryonic origin and basic structure whereas Analogous organs have different embryonic origin and basic structure. Homologous organs may look different and may perform different function; e.g., forelimb of a man and flipper of a whale. Whereas Analogous organs look alike and perform same functions; e.g., Wings of birds and insects.
They are both mammals
whales and dolphins both have fins, but dolphins are much smaller than whales
Analogous means that the structures have different origins, but they do the same things. Homologous means the opposite: that they have the same origins but are adapted to do different functions.
Homologous features of animals are a lot more recent in contrast to evolution, where as analogous dates far back. Homologous features are similar in structure, but perform different functions, such as the human hands and dolphin flippers, which makes room to allow recent evolution comparisons while analogous consists of wings of a bee and a bird, which are completely different. When trying to determine evolutionary relationship between two species, biologists concentrate on homologous features, as analogous features would be considered useless in this case.
They show similarities between organisms structure. if the similarities are large then it shows that those organisms share a common ancestor.
Homologous structures refer to structures on different species that are similar in function and their evolutionary origin. Analogous structures are similar in function but do not share a similarity in evolutionary origin.
that they share a common ancestor