Explanation:
This shows movement of a plant. Plant movement due to external stimuli are of two types: tropism and nasties. When the direction of external stimulus decides the direction of response in the form of growth it is called tropism. Thus, tropism is the directional growth movement of a plant part.
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Answer: The genotype of a female is XX while that of a male is XY. The probability of them having a male child is 1/2 while the probability of having a female child is 1/2.
Explanation: Normally, females have two X chromosomes (XX) while males have one X chromosome and one Y chromosome (XY). In a cross between a man and a woman, there is fifty percent chances of having a female child and also fifty percent chances of having a male child. Therefore, the probability of having a female child is 1/2 while the probability of having a male child is also 1/2.
See the punnett square attached
Answer:
In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.
Explanation:
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Answer:
The answer is A
Explanation:
The gene sequence inscribed in DNA, and in RNA, is composed of tri-nucleotide units called codons, each coding for a single amino acid. Each nucleotide sub-unit consists of a phosphate, deoxyribose sugar and one of the 4 nitrogenous nucleotide bases grouped into 2 categories, purine and pyrimidine.
Answer:
China, Russia, Kazakhastan, Mexico, Nimibia, Greenland, South Africa, Canada, Australia
