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
Anna11 [10]
3 years ago
6

Zebrafish (Danio rerio) is an important model organism in the field of genetics. One of the first mutant genes to be studied in

this species was golden. The mutant allele was discovered in a pigmentation mutant purchased from a pet store, which changed the color of the fish from the wild-type silver-white coloration to a pale golden color. Calculate the percent likelihood of golden offspring from a cross between a heterozygous wild-type male fish to a golden female fish a 0% b 50% c 25% d 100%
Biology
1 answer:
BigorU [14]3 years ago
5 0

Answer:

b

Explanation:

<em>Let the wild type trait, the silver-white, be represented by </em><em>A</em><em> allele and the mutant trait, the golden color, be represented by </em><em>a</em><em> allele.</em>

Heterozygous wild-type male fish would be Aa

Golden female fish would be aa

     Aa    x    aa

  Aa   Aa    aa    aa

2/4 Aa = silver-white

2/4 aa = golden color

<em>Hence, the percent likelihood of golden offspring is </em><em>2/4 or 50%.</em>

The correct option is b.

You might be interested in
Some factors that contribute to a person's optimal personal health include nutrition, exercise, and genetics.
Yuki888 [10]

Answer: True

Explanation:

It should be noted that nutrition, exercise, and genetics contribute to the optimal personal health of an individual.

Good nutrition has a positive effect on the health of individuals. Exercise is also good for ones body. Some environments can being about an increase in the risk of developing certain diseases as well as ones genetics as some diseases are hereditary.

8 0
3 years ago
What are the three main parts of the cell cycle
andrey2020 [161]

Answer:

interphase. period of the cell cycle between cell divisions.

Mitosis. cell division in which the nucleus divides into nuclei containing the same number of chromosomes.

cytokinesis. division of the cytoplasm during cell division.

Explanation:

The cell cycle, or cell-division cycle, is the series of events that take place in a cell leading to duplication of its DNA (DNA replication) and division of cytoplasm and organelles to produce two daughter cells. In bacteria, which lack a cell nucleus, the cell cycle is divided into the B, C, and D periods. The B period extends from the end of cell division to the beginning of DNA replication. DNA replication occurs during the C period. The D period refers to the stage between the end of DNA replication and the splitting of the bacterial cell into two daughter cells.[1] In cells with a nucleus, as in eukaryotes, the cell cycle is also divided into two main stages: interphase and the mitotic (M) phase (including mitosis and cytokinesis). During interphase, the cell grows, accumulating nutrients needed for mitosis, and undergoes DNA replication preparing it for cell division. During the mitotic phase, the replicated chromosomes and cytoplasm separate into two new daughter cells. To ensure the proper division of the cell, there are control mechanisms known as cell cycle checkpoints.

5 0
3 years ago
Read 2 more answers
What provides an image that is three-dimensional representation with little magnification
castortr0y [4]

Answer:

Scanning electron microscope.

Explanation:

It is scanning electron microscope because it is an electron microscope that produces image with three dimensional structure of the specimen by scanning the surface of the specimen using beam of electrons that is been focused causing an interaction between the electrons and atoms of the specimen which send signals that indicates information about the specimen.

6 0
3 years ago
Protists with the capabilities to perform photosynthesis and to absorb nutrients from dead organisms are called ______________.
alisha [4.7K]

Answer:

mixotrophs

Explanation:

Myxotrophism or myxotrophy, in biology, is the name given to the quality of the living being with autotrophic and heterotrophic characteristics. That is, it is capable of producing its own food from carbon dioxide fixation (through photosynthesis or chemosynthesis), but it can also feed on other inorganic or organic compounds. Mixotrophic can be either eukaryotic or prokaryotic.

Carnivorous plants are commonly cited as myxotrophic organisms in the wrong way because all their food comes from photosynthesis. These plants only depend in part on the nitrogen contained in animal proteins that they digest. This dependence occurs because the carnivorous plant is native to areas with poor, soggy soil, scarce of nitrates, essential for the synthesis of the chlorophyll molecule.

5 0
3 years ago
An acute, contagious respiration infection is called rhinitis or what?
mote1985 [20]
Rhinitis is an inflamation in the nose
anything with "itis" means inflammation
4 0
3 years ago
Other questions:
  • When you are sick, extra white blood cells are created by the _____.
    13·2 answers
  • HELPPP
    5·2 answers
  • What kind of change occurs when salt dissolves in water?
    8·2 answers
  • Follow these steps and study the table to answer the question. go to the weekly us map: influenza summary update. at the top of
    11·1 answer
  • A beer-making microbiologist noticed that no matter how long the brewing process took, 3% alcohol was the maximum produced. Hypo
    12·1 answer
  • Cells from an advanced malignant tumor most often have very abnormal chromosomes, and often an abnormal total number of chromoso
    5·1 answer
  • Which of the following statements is true? Water is the energy source for plant photosynthesis. Chlorophyll is contained in orga
    11·2 answers
  • Question 17 of 30
    8·1 answer
  • What are some similarities between a sea slug and a spotted salamander
    15·1 answer
  • Place the following statements in the correct order in the blanks below to describe how
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!