<span>Sexual fertilization takes place
when a sperm from the male fuses into the egg cell of the female. <span>Human cells contain 23 chromosomes and has a total of 46
pairs of chromosomes. A male has a total of 46 pairs chromosomes and gives 23 chromosomes
while a female has a total of 46 pairs of chromosomes and gives 23 chromosomes
to the offspring. These pairing are responsible to the trait of the offspring. The
formation of both male and female gametes creates a zygote. They will start to
form at the fallopian tube, down to the oviduct and into the uterus as it
continues to divide. </span></span>
Answer:
Polygenic inheritance
Explanation:
When multiple genes present at different loci on chromosomes regulate a single genetic trait, the trait is said to be polygenic and the inheritance is a polygenic inheritance. The phenotype of the individual is regulated by an allele of each gene in an additive manner. The sum total of phenotypic effects of each allele of all the genes determines the final phenotype of the individuals.
These traits not present in discrete contrasting pairs (such as tall and short) but exhibit quantitative variations. For example, skin color in humans is regulated by multiple genes and the phenotype of the individual ranges from very light to very dark with many intermediates in between.
Answer:
1. air mass -> large body of air with uniform temperature and humidity
2. cyclone -> a severe storm
3. front -> where two different air masses meet
4. source region -> area over which an air mass forms
Answer:
C. 2/4
Explanation:
If we crossed 2 heterozygous plants, 2/4 of the offspring will be heterozygous.
Answer:
The assumption regarding the population which is necessary for making an interval estimate for the population mean is that:
a. We assume that the population has a normal distribution.
b. We assume that the central limit theorem applies.
Explanation:
The assumption regarding the population which is necessary for making an interval estimate for the population mean is that:
a. We assume that the population has a normal distribution.
b. We assume that the central limit theorem applies.
A normal distribution describes how the values of a variable are distributed. It is a probability distribution that is symmetrical about the central value or the mean, i.e. 50% of data are found to the left and right of the mean respectively. Most of the data are clustered around the mean, i.e. they occur or are found near the mean than far away from the mean. The graph form of a normal distribution will appear as a bell curve. In a normal distribution, mean = mode = median.
The Central Limit Theorem states that irrespective of the underlying distribution of a sample, when a variable does not follow a normal distribution, repeated random samples from the population will give sample means they are normally distributed. This means that the sampling distribution of the sample means approaches a normal distribution as the sample size gets larger.
