Answer: No. Gender traits in humans are largely determined by biophysical processes.
to be quite honest, I wasn't too sure on this question but I believe it's habitat destruction. if i'm wrong, my apologies.
Answer: A). A piece of DNA that controls a trait
Explanation: A gene is a functional unit of hereditary. A gene determines the characteristics of an offspring. Genes are said to be functional unit of hereditary because they are transferred from the parents to the offsprings.
A gene is a nucleotide sequence found on a chromosome which determines a trait in an individual.
Answer:
3.4
Explanation:
If the purple flower is heterozygous:
Pp x pp
Pp Pp pp pp
the expected ratio of purple flower offspring to yellow flower offspring would be 50:50.
Chi square = where O = observed frequency and E = expected frequency.
phenotype O E Chi square
purple 87 73 = 0.67
yellow 59 73 = 2.68
Total = 0.67 + 2.68 = 3.35 to the nearest tenth = 3.4
Degree of freedom = 2 - 1 = 1
Critical Chi square value (alpha = 0.05) = 3.84
<em>SInce the critical Chi square value is greater than the calculated value, the null hypothesis is accepted. </em>
<u>Answer:</u>
B) During radioactive decay, atoms break down, releasing particles or energy.