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
MatroZZZ [7]
4 years ago
10

A scientist has discovered a new gene in oysters. Oysters with the dominant allele for disease resistance 'R' have been found to

tolerate polluted waters better than oysters with the recessive 'r' allele. What term is used to describe an oyster that has two identical dominant alleles (RR) for this gene?
A) genetic hybrid
B) homozygous dominant
C) heterozygous dominant
D) heterozyous recessive
Biology
2 answers:
fredd [130]4 years ago
7 0

The right answer is B) homozygous dominant

We speak of homo / heterozygosity about a locus, that can be represented by several alleles (version). The alleles are dominant or recessive between them.

*So homozygote: same alleles

*heterozygote: different alleles


Consider a locus and 2 alleles:

allele R: dominant

allele r: recessively


*heterozygote: R / r

*homozygous recessive: r / r

*homozygous dominant: R / R

ziro4ka [17]4 years ago
3 0

the answer is B I believe

You might be interested in
Define Chromosome, gene, and chromatid. Draw a picture of a chromosome and label it. Write a brief summary of both videos (at le
g100num [7]

Answer:

i can only define the terms for you.

Explanation:

chromosome - a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

chromatid - each of the two threadlike strands into which a chromosome divides longitudinally during cell division, each containing a double helix of DNA.

gene - a distinct sequence of nucleotides that forms a part of a chromosome, the order of which determines the order of monomers in a polypeptide or nucleic acid molecule which a cell or virus that may synthesize

5 0
3 years ago
A plausible explanation of Rachel Carson's description of a photo from the ocean's deep
MakcuM [25]
The answer is False
8 0
3 years ago
For a mutation to be passed to offspring, in what type of cell must it occur?
AVprozaik [17]

Answer:

Germ Cell DNA.

Explanation:

Mutations are only passed on to offspring when they occur in germ cell DNA, which are the cells that create sperm or ova.

mutations only occur in germ cells and their DNA.

4 0
3 years ago
Using the Image above which statement does not accurately describe the relationship between photosynthesis and cellular respirat
professor190 [17]
Water only needed for Photosynthesis.. Not both of Photosynthesis and Respiration..
4 0
3 years ago
Read 2 more answers
What specialized do bengal tigers have?
NikAS [45]
Tigers also have large padded feet that enable them to silently stalk prey in the Asian jungles. Each of the paw has four claws and one specialised claw called a dewclaw which are like thumbs and are used for grasping prey and climbing. I hope this helps!!
7 0
3 years ago
Other questions:
  • Physical dependence on a drug leads to drug tolerance. <br> a. True <br> b. False
    11·1 answer
  • Name a practice in industry or in households that is adding pollution to the
    15·1 answer
  • Which of the following types of models is usually in the form of a drawing, graph, or equation?
    9·2 answers
  • Which of the following lipids is a precursor for both vitamin d and testosterone?
    5·1 answer
  • True or False: Rainforests are home to many of the largest animals on Earth.
    10·1 answer
  • What are the components of adenosine triphosphate (ATP)?
    14·1 answer
  • What is the name of the sugar in the mrna nucleotides?
    13·1 answer
  • Which term refers to the structure that forms the surface of a cell, separating its contents from the outside world?
    12·2 answers
  • Positively charged sodium ions transport electrical impulses in the nervous system. Which subatomic particle does sodium lose to
    7·1 answer
  • An ice is put in a beaker and left in the sun for long<br>What with happen to the iceblock?<br>​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!