Answer:
the missing word is intellectual development
Explanation:
Binet and Simon assumed that children generally follow the same path of intellectual development, so their primary goal in creating an assessment was to compare the mental abilities of an individual child with the mental abilities of other children in the same age category.
intellectual development means the growth of a child's ability to think and reason. It's also about how they organize their minds, ideas and thoughts to make sense of the world they live in for example how they begin to reason and argue, uses words like why and because.
Answer:
The sex ratio is the ratio of males to females in a population.
Explanation:
It is generally divided into four subdivisions:
primary sex ratio — ratio at fertilization
secondary sex ratio — ratio at birth
tertiary sex ratio — ratio in sexually mature organisms
quaternary sex ratio — ratio in post-reproductive organisms
Answer:
The answer is mitotic nondisjunction of X Chromosomes.
Explanation:
Nondisjunction is a type of error that occurs resulting in daughter cells with chromosome numbers that are abnormal (aneuploidy). Due to the error in chromosome numbers, it gives rise to conditions such as Down Syndrome (Trisomy 21) and Turner Syndrome (Monosomy X). Nondisjunction can be caused by;
1. Failure of separation to occur in a pair of homologous chromosome during meiosis I.
2. Failure of separation between sister chromatids in Meiosis II.
3. Failure of separation between sisters chromatids in mitosis.
This gives the 45,X in Turner syndrome. The other X chromosome is partly or completely missing. Hence, the female is born with only one X chromosome.
<span>Researchers fail to control variables that then damage the overall integrity of an experiment. The conclusions can be wildly inaccurate as a result. The results may show a negative correlation between variables that invalidate the total effort. The researchers assume variables but do not account for a variable that influences the statistical outcome of the experiment.</span>
