suppose P is a dominant allele for a flower color and p is a recessive one.
The expected ratio of genotypes among the F1 offspring is 1 Pp : 1 pp.
The white pea bloom was "masked" in the F1 generation, which caused all of the flowers to be purple.
The "masked" genes from the F1 generation were permitted to mate, but they were only allowed to pair once, leaving the other three times to appear with purple flowers, resulting in a 3:1 ratio of purple to white blooms in generation F2.
He paired a homozygous dominant flower with a homozygous recessive flower in his initial attempt. As a result, all of the F1 generation's progeny were heterozygous, making them all purple.
Two heterozygous, one homozygous recessive, one homozygous dominant, and the progeny of the F1 generation were crossed with another heterozygous plant.
To know more about Crosses :
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Well the nervous system divides into the central nervous system (CNS) (brain and spinal cord) and the peripheral nervous system (PNS) (everything else). From there, the CNS divides into the autonomic (ANS) (reflex functions) and the somatic (SNS) (voluntary movement) nervous systems. The ANS subdivides into the sympathetic (SANS) (fight or flight) and parasympathetic (PSNS) (rest and digest) nervous systems. Not sure exactly what the question is referring to, but this is a basic layout of all of the main nervous systems.
Hello there,
The nucleus<span> maintains the integrity of genes and </span>controls<span> the activities of the </span>cell<span> by regulating gene expression.
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Hope this helps :))
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Answer:
b, a, d, c, e
Explanation:
The lac operon is called lactose operon is a cluster of genes with a promoter. The bacteria uses lactose as the source of energy by the proteins coded by genes. This is present in prokaryotes.
The regulatory gene codes for repressor protein. The repressor binds to lactose and prevent its binding to operator. In the absence of lactose repressor gets activated and binds with operator. Thus, RNA polymerase is prevented from binding the promotor. The transcription of genes inhibited. Thus correct order is b, a, d, c, e.
