1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
algol13
3 years ago
13

In humans, the eye color and hair color genes are located on different chromosomes. Brown eyes (B) are dominant to blue (b), and

dark hair (D) is dominant to red (d). A man with brown eyes and red hair and a woman with blue eyes and dark hair have children together. They have a child with brown eyes and red hair, and one child with blue eyes and dark hair. Give the genotypes of each of the parents and the children.
Biology
1 answer:
Andrej [43]3 years ago
3 0

Answer:

Man's genotype: Bbdd

Woman's genotype: bbDd

First child's genotype: Bbdd

Second child's genotype: bbDd

Explanation:

This is a dihybrid cross involving two genes; one coding for eye color and the other for hair color in humans. The allele for brown eye (B) is dominant over the allele for blue eyes (b) in the first gene while the allele for dark hair (D) is dominant over the allele for red hair (d) in the second gene.

According to the question, A man with brown eyes and red hair will possibly possess genotypes: BBdd or Bbdd while a woman with blue eyes and dark hair will possibly have genotype: bbDD or bbDd. Considering the fact that they produced children with recessive traits for both gene (blue eyes and red hair), it means that they are heterozygous for their dominant trait. This means that the ideal genotype for the man is Bbdd since he will produce gametes containing B and b alleles for the first gene while the ideal genotype for the woman is bbDd since it will produce gametes with D and d allele for the second gene.

Hence, a child with brown eyes and red hair will possess genotype: Bbdd since he/she cannot receive two dominant alleles for the first gene from both parents. A child with blue eyes and dark hair will have genotype: bbDd since he/she cannot receive two dominant alleles of the second gene from both parents.

You might be interested in
"Which phase of mitosis shows the greatest difference between animal cells and plant cells"?
emmasim [6.3K]
The answer is Cytokinesis
5 0
3 years ago
What is an amino group made out of? What specific parts of cells can they be found in?
EastWind [94]

Cell membranes protect and organize cells. All cells have an outer plasma membrane that regulates not only what enters the cell, but also how much of any given substance comes in. Unlike prokaryotes, eukaryotic cells also possess internal membranes that encase their organelles and control the exchange of essential cell components. Both types of membranes have a specialized structure that facilitates their gatekeeping function.

8 0
3 years ago
3. What atoms are parts of the process of photosynthesis?
AlladinOne [14]

Answer

Photosynthesis involves three elements: carbon, hydrogen, and oxygen. You have seen that the products of photosynthesis are oxygen and glucose. Their chemical formulas are shown below.

4 0
3 years ago
Read 2 more answers
What was observed during Rutherford's experiment?
g100num [7]
I believe the correct answer from the choices listed above is the last option. Most of the particles went through the foil, but some were deflected. This<span> proved that atom has mostly empty space,there is positively charged nucleas at the centre of the atom and the electrons revolve round the neucleus at large distances from it in circular orbits.</span>
3 0
3 years ago
What is the fate of pyruvate in the cytoplasm when oxygen is absent ​
IceJOKER [234]

Answer:

Pyruvate is turned to lactate via a process called fermentation

Explanation:

Pyruvate is the product of the initial stage of cellular respiration called GLYCOLYSIS. Pyruvate is produced in the cytoplasm where glycolysis occurs. The fate of pyruvate i.e. what will eventually happen to pyruvate, is determined by the presence or absence of oxygen.

In the absence of oxygen i.e. anaerobic condition, pyruvate is converted into lactate in a process called FERMENTATION. The NADH produced during glycolysis is reoxidized to form NAD+ in the process.

3 0
3 years ago
Other questions:
  • the galapagos tortoise are biodiverse. tortoises in a more barren area have a flat shell and long neck to help grasp the sparse
    11·1 answer
  • Justin is a 6-month-old infant. he focuses intently on new stimuli, and quickly becomes habituated. what can we infer about just
    14·1 answer
  • Cells are the basic <br>a0 <br>a1 of our bodies.
    9·2 answers
  • Ricardo listed characteristics of three types of fungi in a chart.
    5·2 answers
  • Why is it important to have regular supervision of the weight and measurements in the market?
    6·1 answer
  • The seismic waves in a 6.1 magnitude earthquake are __times larger than
    10·1 answer
  • (64 points)
    8·1 answer
  • What happens when light goes through a prism
    12·1 answer
  • HELP SOS
    13·2 answers
  • Let p: It is raining
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!