Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. In addi
tion, suppose that a dominant allele (L) codes for long eyelashes and a recessive allele (l) codes for short eyelashes. If two individuals heterozygous for both traits (tail color and eyelash length) mate, what's the probability of the phenotypic combinations of the offspring? A. 1:1 ratio (half are polka-dot tails and short eyelashes; half are solid tails and long eyelashes) B. 9:3:3:1 ratio (9 polka-dot tails and long eyelashes, 3 polka-dot tails and short eyelashes, 3 solid tails and long eyelashes, 1 solid tail and short eyelash) C. 9:3:3:1 ratio (9 polka-dot tails and short eyelashes, 3 polka-dot tails and long eyelashes, 3 solid tails and short eyelashes, 1 solid tail and long eyelash) D. 1:1 ratio (half are polka-dot tails and long eyelashes; half are solid tails and short eyelashes)
<span>The correct answer is B. 9:3:3:1 ratio (9 polka-dot tails and long eyelashes, 3 polka-dot tails and short eyelashes, 3 solid tails and long eyelashes, 1 solid tail and short eyelash)</span>
Polka-dot tails and long eyelashes: PPLL PPLl PpLL PpLl PPLl PpLl PpLL PpLl PpLl
<span>Polka-dot tails and short eyelashes: PPll Ppll Ppll</span>
<span>Solid tails and long eyelashes: ppLL ppLl pp Ll</span>
Organisms depend on other members of an ecosystem to live and grow. For example, in a symbiosis, buffalo birds will lay eggs in the nest of other birds. These chicks then depend on the parent birds to raise them.
There are many types of frogs thus there are a lot of scientific names also, such as Rana draytonii or Atelopus zeleki. But the common scientific name or order for frogs is called Anura.