Answer:
(a) Gg × Gg; (b) genotypic = 1:2:1, phenotypic = 3:1
Explanation:
a) A cross between two gray seeded plants produces progeny with gray and white seeds in 3:1 ratio (302:98=3:1). This means that the parent plants are heterozygous and each has at least one recessive allele. If the allele "G" is responsible for gray seed and the allele "g" imparts white color to the seeds, the genotype of the heterozygous parents would be "Gg".
b) A cross between two heterozygous gray seeded parents would produce progeny in following ratio:
Genotype ratio= 1 GG: 2 Gg: 1 gg
Phenotype ratio= 3 Gray: 1 white
I think A but you should double check with some one else.
Very simple. At rest, you have a number of bpm. After exercise, the heart can't return abruptly to the rest speed, and it keeps a faster rate for a while.
Answer:
E. It is a specific regulatory transcriptional activator protein
Explanation:
TFIID is a transcription coactivator protein complex. It is a protein complex of about 12 proteins and includes TATA-binding protein (TBP) and certain TBP-associated factors, or TAFs. TFIID is required for transcription as it acts as an intermediate between the DNA-binding transcription activators and the Pol II complex. Some TAFs of TFIID share a resemblance with histone proteins and displace nucleosomes during the activation of transcription.
Answer:
C. Archaea can live in environments with extreme conditions such as temperature, while bacteria can't.
Explanation:
Archaea are capable of surviving under the extreme condition and so are considered as extremophiles.
However bacteria are more suited towards mild climates and would die in extreme conditions
<em>Archaea are found in unusual environments like in hot springs, ocean depths, salt brines, while bacteria are found everywhere like in the soil, water, living and non-living organisms.</em>
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