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
weeeeeb [17]
3 years ago
7

Children tend to resemble their parents in many ways; they may have like eye color, hair texture, height, or skin tone. This is

because children inherit genes from both parents. A child receives 1/2 of his/her genes from the mother and the other half from the father. Genes are part of our DNA; our DNA makes up the chromosomes in our body and sex cells.
Sex cells or gametes are produced during the process of meiosis. Gametes have 1/2 the number of chromosomes as do regular body cells, like skin or muscle cells. When fertilization takes place, the two sets of alleles from the male gamete (sperm) and the female gamete (egg) are combined.


Many years ago, Gregor Mendel discovered that we have dominant and recessive traits that are determined by our genes. For examples, brown eyes are dominant over blue eyes. Scientists represent the gene for a trait with a letter: capital letter for dominant and lower case letter for recessive. A brown-eye person would have the genotype BB or Bb. A blue-eyes person would have the genotype bb. Whenever a dominant trait is combined with a recessive trait (Bb), the dominant trait most often masked the recessive trait.


Look at the grid above. This is called a Punnett square. It shows the genotypes of two parents and then the possible gametes that could be produced by each parent. We use the Punnett square to show the possible combinations of genes and the resulting traits. In this case, two black rats mate and their potential off-spring could be black (BB, Bb) or white (bb). The chances of having a black rat in this example is 3:4 or 75% and having a white rat is 1:4 or 25%.



Drag the labels to the correct locations within the Punnett square.


Black

Dominant gene

Phenotype

Recessive gene

White

Chemistry
1 answer:
weeeeeb [17]3 years ago
5 0

black would be BB .

dominant gene is B.

phenotyope is where it says white fur.

recessive gene is b.

white is bb

You might be interested in
PLZ HELP!<br><br> How do you think changing the angle of a ramp will affect work done?
kogti [31]

Answer: The steepness of a ramp affects it by making it easier or harder.

Explanation: It's a bit situational. If you were going up a steep ramp with a heavy load, it will increase the work necessary, whereas if you were going down a ramp, it would decrease the work necessary. If you need this simply put, think about biking up and down a hill. It would be easier going down than up.

6 0
3 years ago
g Oxidation refers to ________ Select one: a. an increase in oxidation number. b. a decrease in oxidation number. c. an increase
mihalych1998 [28]

Answer:

The correct alternative is "Option a".

Explanation:

Oxidation has become a mechanism whereby the physicochemical properties transform attributed to the formation of O₂.

  • The connection involving magnesium as well as O₂ requires the oxidation of the component named magnesium.
  • Even before exposed to the air, silicon is oxidized as well as generates silicon dioxide.

Other possibilities are not connected to the scenario in question. So Choice A is the best option.

4 0
2 years ago
How do plants and animals help to maintain a balance of carbon dioxide in the atmosphere
Tom [10]
Well all I know that animals take in oxygen and take out carbon dioxide and plants take in carbon dioxide and take out oxygen
3 0
3 years ago
According to the kinetic-molecular theory, the collision between two ideal gas particles is a result of
Svetlanka [38]
<span>The correct answer is neither attraction nor repulsion.</span>
<span>Kinetic Molecular Theory explains that gas particles are in constant motion and exhibit perfectly elastic collisions. The motion of gas particles is random, meaning that there are no attractive forces on each other or on their surroundings. When two particles collide, the total kinetic energy is conserved.</span>
4 0
3 years ago
Read 2 more answers
Carbon (C): 1s(H)2s(I)2p(J)<br> What is H, I, and J equal?
Artemon [7]

Answer:

H =2; I = 2; J = 2  

Explanation:

Carbon is element 6 in the Periodic Table.  

Start at element 1 (H) and count from left to right until you reach element 6 (C).

You get the electron configuration

C: 1s² 2s²2p².

Thus,

H =2; I = 2; J = 2

3 0
3 years ago
Other questions:
  • Illustrate: The Avogadro constant is so large it is normally written in scientific notation. To
    5·2 answers
  • Determine the enthalpy of the products of ideal combustion, i.e., no dissociation, resulting from the combustion of an isooctane
    8·1 answer
  • Give the volume indicated. Be sure to include all significant figures.<br> 9.2<br> 9.16<br> 9.26
    7·2 answers
  • How to write a word equation for CaCl2
    8·1 answer
  • Que enuncia la ley de la conservación de la energia​
    9·1 answer
  • 97
    6·1 answer
  • These are the photos for part A
    12·1 answer
  • The interaction of the skeletal and muscular systems to create movement and locomotion is regulated by which organ system?
    11·1 answer
  • An unbalanced chemical equation is shown: 2NaN3 → 2Na + N2 Which of the following statements explains why the equation is not ba
    11·2 answers
  • Helppppppppppppppppppppppppppp
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!