3 years ago

The ultimate sourcd of energy in most food chains or food webs is

Biology

1 answer:

lisabon 2012 [21]3 years ago

8 0

Answer:

The sun is the ultimate source

Explanation:

Every producer draws energy from the sun through photosynthesis and every consumer either eats the producer or another consumer

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Natasha2012 [34]

Answer:

if a answer is virus or some sort of bacteria, the thata it

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3 years ago

What phenotypic ratio would you expect as a result of a test cross between a dihybrid organism and one that is homozygous recess

Artyom0805 [142]

Answer:

¼ or 25% will be dihybrid organisms, ¼ will be heterozygous at first locus and recessive homozygous at other locus , ¼ of them will be recessive homozygous at first locus and heterozygous at other locus, and ¼ of them will be homozygous recessive for alleles at two independent loci.

Explanation:

A dihybrid organism is one that is heterozygous at two different genetic loci. So if we name one gene with D and other gene with R, dihybrid organism will have genotype DdRr.

If we cross that organism with the one that is homozygous recessive for alleles at two independent loci ddrr:

P: DdRr x ddrr