Steps:
1. Do a punett square (Bb= heterozygous)
B b
B
b
2. The outcomes would be BB, Bb, Bb, and bb
3. Your answer would be 50% since there are 2 that are heterozygous and 4 total outcomes. 2/4=1/2=50%
The dominant phenotypes are not always more frequent than the recessive phenotypes
Let us examine a typical (thus rare) character of a single gene:
dominant allele + dominant allele = dominant phenotype
dominant allele + recessive allele = dominant phenotype
recessive allele + recessive allele = phenotype Recessive
Looking at this, you might conclude that the dominant phenotype is more common. But recessive alleles could be present in a high frequency in a certain population.
For example: in the color of the eyes, people with clear eyes tend to carry recessive alleles of key genes. Dark-eyed people tend to have dominant alleles.
In Scandinavia, most people have clear eyes, implying that recessive alleles of these genes are much more common in this region than dominant alleles.
Answer:
Hello!!
1. Which of the following are in the correct order from least complex to most complex?
A. molecule-atom-tissue-cell-organ-system
B. cell-tissue-molecule-organ-atom-system
C. cell-tissue-organ-atom-molecule-system
<u>D. atom-molecule-cell-tissue-organ-system</u>
2. Which system consists of the kidneys, ureters, urinary bladder, and urethra?
A. digestive
B. endocrine
C. respiratory
<u>D. urinary</u>
<u></u>
3. What is the name for the material that goes from the glomerulus into Bowman's capsule of the nephron?
A. solvent
B. solute
<u>C. filtrate</u>
D. urine
4. What is the name for the process by which water and nutrients are moved from the nephron to the blood?
A. tubular filtration
<u>B. tubular reabsorption</u>
C. tubular secretion
D. tubular flow
5. What is the name for the capillaries that are surrounded by Bowman's capsule in the nephron?
A. alveolus
<u>B. glomerulus</u>
C. collecting duct
D. urethra
6. Which of the following should not be present in the filtrate in Bowman's capsule?
<u>A. proteins</u>
B. water
C. salts
D. glucose
7. What are the tubes that carry urine from the kidneys to the urinary bladder?
A. collecting ducts
<u>B. ureters</u>
C. urethras
D. nephrons
8. What is the main nitrogenous waste product that is eliminated in the human urine?
A. ammonia
B. water
<u>C. urea</u>
D. uric acid
Hope this helps!!
Advantages of asexual is only one parent is needed. Disadvantages is no genetic variation. For sexual advantages is genetic variation. Disadvantage is two parents are needed.
