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
Tom [10]
2 years ago
6

What is a Punnett Square?:

Biology
1 answer:
Elena L [17]2 years ago
6 0

Answer:

A: A tool for showing possible alleles of offspring in a test cross

Explanation:

Punnet squares use the alleles of the parents to find possible alleles of their offspring.

You might be interested in
Cells in multicellular organisms have many different sizes and shapes. These differences in cells are part of cell specializatio
qaws [65]
Cell specialization allows cells to perform essential cell specific tasks. Such as nerve cells, red blood cells etc.
6 0
3 years ago
______________ is a contractile tissue that can accurately change the lumen size of an arteriole so that the conductance of flow
umka21 [38]

Answer: Vascular smooth muscle cells.

Explanation:

Vascular smooth muscle cells are the contractile tissues which regulates flow blood and pressure of the blood by vasoconstriction (contraction) and/or vasodilatation (relaxation).

Vasoconstriction is the contraction of the blood vessels to increase tge pressure of the blood.

Vasodilatation is the relaxation of the blood vessels which results in a decrease in blood pressure.

5 0
3 years ago
What differs among DNA structures of different species?
weqwewe [10]

Answer:

D) the arrangement of the nucleotides within genes

Explanation:

De-oxy ribo nucleic acid that is basically a polymer of nucleotides. Nucleotides are composed of three basic units: a de-oxyribose sugar unit, a phosphate group and nitrogenous bases that can be Adenine, Gunanine, Thymine and Cytosine.Adenine always pairs with Thymine and Guanine always pairs with Cytosine.

This is a universal composition of DNA in each and every living organism. The genes are a segment of DNA that contain specific sequence of nucleotides and encode for a specific trait of organism such as height, weight, eye color etc. The sequence of nucleotides expresses the trait in the form of protein product during the process of Translation. The products of translation are amino acids and every amino acids encode for a specific protein  in almost  all living organisms.

So, what differs in the specie is the sequence of nucleotides in genes. Infact this is the nucleotide sequence which brings evolution in organism and organisms evolve to form new specie with the passage of time. One major cause of change in nucleotide sequence is mutations due to which the organisms change with time.

Suppose the sequence of nucleotide of specific gene in organism A is

AAGGGGAAATTT

However in other specie organism B of same specie is:

TAGGGGAAATTT

This means only mutation of one base changed the gene in organism B and also its product called protein.

Hope it help!

8 0
3 years ago
Read 2 more answers
How many gallons of blood are estimated to be pumped by the heart each day?
elena-s [515]
The adult heart pumps about five quarts of blood each minute so around 2,000 gallons<span> of blood each day.A typical athlete's heart churns out up to </span>eight gallons<span> of blood per minute.</span>
4 0
3 years ago
The cell bodies of sensory neurons whose fibers enter the spinal cord are found in the __________.
Agata [3.3K]
Automatically region nervous system
7 0
3 years ago
Other questions:
  • The graphs above show a change in distribution of beak phenotypes X Y and Z over 10 Generations. Notice that beak X completely d
    9·2 answers
  • An individual will only feel stress in negative situations. . True or false
    8·2 answers
  • How does an ultrasound produce an image of a fetus in the mother’s uterus?
    13·2 answers
  • mosquitos have 6 chromosomes, dogs have 78, and a adder's tongue fern has 1262 chromosomes. Given this information, what can be
    13·1 answer
  • Which of the following are the 3 factors of Sustainability?
    14·1 answer
  • Alexander Litvinenko was poisoned with 10 micrograms of the radioactive substance Polonium-210. Since radioactive decay follows
    11·1 answer
  • How many people lived in North America before the Europeans arrived ?
    7·1 answer
  • What is a nutrient that leads to eutrophication
    14·2 answers
  • HELP PLEASE THANK YOU APPRECIATE IT
    15·2 answers
  • True or False: Two genes on the same chromosome may become separated during meiosis.​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!