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
Alexeev081 [22]
3 years ago
9

A white dog is crossed with a heterozygous black dog. What are the pearents genotype ? And what percentage of the offspring will

be black ?
Biology
2 answers:
son4ous [18]3 years ago
8 0
75% i think. maybe wait for another answer 
Hunter-Best [27]3 years ago
4 0

Answer:

The black heterozygous dog has the genotype "Aa" and the white dog has the genotype "aa". A cross between these two dogs (Aa x aa) would generate an offspring of 50% Aa (black coat) and 50% aa (white coat).

Explanation:

Heterozygous organisms have the characteristic of the dominant allele, so we can say that the black dog shown in the question above has the "Aa" alleles in its genome. As black fur is a dominant characteristic, we can consider the white dog as a homozygous recessive dog, therefore it has the "aa" genotype. If we crossed these two dogs we would have an "Aa x aa" type crossing that would result in an offspring with the genotypes "Aa", "aa", "Aa", "aa". In this case, 50% of the offspring have the "Aa" genotype and 50% of the offspring have the "aa" genotype.

You might be interested in
Which activity is an example of a decomposer
trasher [3.6K]

Answer:

the answer is 4

Explanation:

because a fungus is breaking down the body of a dead animal it is givingthe compound of the animal back into the environment

4 0
3 years ago
How does the atp adp cycle work
Nataly [62]

Some energy in ATP is released to do work, such as move muscles or force a seedling out of the ground. ... Within the power plants of the cell (mitochondria), energy is used to add one molecule of inorganic phosphate (P) to a molecule of adenosine diphosphate (ADP).


5 0
3 years ago
When scientists are doing research to determine how the environment affects a life form, it often takes many years to reach a co
ki77a [65]
When using the term 'life form' I assume you are speaking of animals, bacteria, etc. Scientists take years to find their desired conclusion because of how the environment tends to change quite frequently (Depending on where the creature lives). The earth is constantly revolving and rotating, which causes changes in the environment. These changes affect the animals behavior, eating habits, and overall chances of survival. A factor that must also be considered is that scientists have to examine these creatures in their natural habitat which can be an issue depending on where they live. For example, if I were to study the behavioral patterns of a Leopard, it would be extremely difficult to do so because the Leopards are specifically keen at camouflaging in their environment. That would make observing its behavioral patterns very frustrating and time consuming. In a way, mother nature is always against us.

(Hope this helps)
3 0
3 years ago
Adh secretion can be stimulated by either blood osmolarity changes or blood pressure changes in the heart or large vessels. TRUE
MrMuchimi
<span>Antidiuretic hormone (ADH) is primarily regulated by the changes in plasma osmolarity. Any alteration in the plasma osmolarity is sensed by the osmoreceptors, which are the neurons present in the hypothalamus. They then, stimulate the secretion of ADH.</span>
5 0
3 years ago
Which characteristics of a force can be measured?
nikklg [1K]

Answer:

Either A or C but A is a bit more true

Explanation:

You can measure one on option C but you can measure both

on answer A. Hope this helps you out.

6 0
3 years ago
Other questions:
  • What would happen if there was an imbalance of certain enzymes in the body?
    15·2 answers
  • What makes amino acids different from each other?
    6·2 answers
  • . Determine the sequence of bases in mRNA if the original DNA base sequence is TAGGCTAA
    6·1 answer
  • a cells digestive enzymes are enclosed in a membrane-bound organelle. how can these molecules function in the cell
    15·1 answer
  • How the nucleus is organized in eukaryotic cells.
    5·1 answer
  • What is a primary reason why a three-domain taxonomic scheme has been adopted over the previous five-kingdom taxonomic scheme?
    5·1 answer
  • The process that enables cells of the body to burn food and release energy is called
    8·1 answer
  • Search the NIH gene database for the term colorblindness. Use the results of the database search to explain how a father and mot
    7·1 answer
  • Which describes the number of people who die per one thousand individuals in a population per year?
    6·2 answers
  • i love this apphahahahahahahahahahahahahahahahahahahaahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!