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
ElenaW [278]
3 years ago
11

You perform a test cross of the dihybrid AaBb and score the phenotypes of 1000 progeny. Assuming independent assortment, how man

y of the progeny do you expect to display the dominant phenotype for both the A and B genes?

Biology
1 answer:
Gnoma [55]3 years ago
5 0

Answer:

4

Explanation:

<em>The number of progeny expected to display the dominant phenotype for both the A and B genes should be  4.</em>

<u>A test cross usually involves crossing an individual whose zygosity is in doubt with an individual that is recessive for both alleles so as to ascertain the zygosity of the former.</u> Hence, for a test cross involving AaBb:

             AaBb     x     aabb

Progeny:

4 AaBb

4 Aabb

4 aaBb

4 aabb

<em>Therefore, the number of progeny expected to display the dominant phenotype for both the A and B genes is 4.</em>

You might be interested in
Thale cress is a plant that is genetically engineered with genes that break down toxic metals. Which type of organism is describ
Misha Larkins [42]

Any genetically engineered organisms is referred to as a transgenic organism.

A transgenic organism is any organism that was modified genetically or engineered by humans, for certain purposes, in this case, the function of the thale cress is to break down toxic metals in the water (cress plants grow on water).

Hope it helped,

Happy homework/ study/ exam!

3 0
3 years ago
Based on the graph, determine how many total meters the falls eroded from 1900 until 1910
posledela

Answer: 9.3 meters

Explanation:

5 0
3 years ago
Read 2 more answers
Sex-linked genes are usually located on
Ymorist [56]

Answer:

c, both x and y chromosomes

Explanation:

different genders

6 0
3 years ago
Did you notice a Distinctive smell for any sample?
hoa [83]
What sample are you talking about?
4 0
3 years ago
An important piece of information in the management of a person infected with a chronic virus such as HIV is his/her "viral load
butalik [34]

Answer:

the answer is 3.2 x 10⁴

Explanation:

The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology to exponentially amplify a specific DNA sample from a small amount of DNA. For this purpose, the PCR technique uses: 1- a DNA polymerase enzyme in order to synthesize new DNA copies and 2- one pair of DNA oligonucleotides (primers) which are complementary to the ends of the target DNA sequence. During each round of PCR, the double-stranded DNA template is unwound and each strand is used to synthesize a new DNA strand, thereby forming two new double-stranded DNA molecules. In consequence, each round of PCR doubles the amount of DNA.

6 0
2 years ago
Other questions:
  • What is secondary succession?
    11·1 answer
  • Small bone fractures that develop in response to repetitive, cumulative trauma are known as __________ fractures.
    10·2 answers
  • A rodent hibernates to escape the long, cold winter months of this biome. Which biome does the rodent live in?
    6·2 answers
  • An index fossil is:________.a. a fossil found in a particular site. b. the ideal specimen of that species to which all later des
    7·2 answers
  • Please answer this question correctly and I will mark brainliest.
    13·1 answer
  • What is special about the Earth that gives us the four Seasons
    15·1 answer
  • What’s an easy explanation of the steps for the phosphorus cycle?
    12·1 answer
  • A 5-year-old boy needs an im injection. the least painful and most effective injection site would be the
    13·1 answer
  • Please help me with this 9th biology work
    10·2 answers
  • When celery sits in it's grocery store packaging for days, it might wilt, even if it is in the refrigerator. To restore it to it
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!