Lac genes are most effectively expressed in presence of Lactose and its analogs when glucose is absent.
Explanation:
A unit of prokaryotic gene expression and regulation,which includes structural genes and regulatory sequences recognized by regulatory gene product is called operon.
<em>Lac </em>structural genes are a part of<em> Lac</em> operon. The <em>Lac </em>operon consists of three, structural genes,an operator and a promoter.The product of Lac operon is involved in the conversion of disaccharide lactose into glucose and Galactose.
Lactose and its analogs are inducers of<em> Lac </em>operon. So, the structural genes are best expressed in presence of Lactose. Glucose and galactose are repressors of lac gene so the genes are repressed in presence of glucose.
Answer:
Every population experiences genetic drift, but small populations feel its effects more strongly. Genetic drift does not take into account an allele's adaptive value to a population, and it may result in loss of a beneficial allele or fixation (rise to 100% frequency) of a harmful allele in a population.
Explanation:
Answer:
In anaphase I of meiosis I the homologous chromosomes are pulled apart from each other.
Explanation:
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Miss Hawaii
Ohhh I know this! Number 1 is saturated fats, Number 2 is unsaturated
<span>A woman who has completed one pregnancy with a fetus (or fetuses) reaching the stage of fetal viability is called Primipara</span>
pri·mip·a·ra<span>prīˈmipərə/</span>nounMedicine<span>noun: primipara</span><span>; plural noun: primiparae</span><span>a woman who is giving birth for the first time.
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