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
ki77a [65]
3 years ago
13

You are interested in tracking a particular trait. To begin your studies you do a dihybrid self cross. What percentage of the of

fspring will be dihybrids themselves
Biology
1 answer:
dybincka [34]3 years ago
7 0

Answer:

4/16 (i.e. 25%)

Explanation:

A dihybrid cross is a cross between two organisms/lines/genes that are hybrids (i.e., heterozygous) for two different traits. In a standard dihybrid cross, there is a relation of complete dominance for both <em>loci</em>, i.e., there are two alleles that are completely dominant and thus mask the effects of the corresponding recessive traits. In a dihybrid cross involving two different genes that assort independently into gametes during meiosis, with dominant alleles "A" and "B" and recessive alleles "a" and "b", respectively, the expected phenotypic ratio will be 9:3:3:1 (ie. 9/16 A_B_, 3/16 A_bb, 3/16 aaB_  and 1/16 aabb), while the expected genotypic ratio of double heterozygous "AaBb" individuals will be 4/16, i.e. 25%.

Representation:

P generation   >> AaBb (father) X AaBb (mother)

Gametes (for both parents) >> 1/4 AB; 1/4 Ab; 1/4 aB; 1/4 ab

F1 generation >> 1/16 AABB; 2/16 AABb; 2/16 AaBB; 4/16 AaBb; 1/16 AAbb; 2/16 Aabb; 1/16 aaBB; 2/16 aaBb; 1/16 aabb

You might be interested in
The scientific name for humans is homo sapiens. what genus do humans belong to
vagabundo [1.1K]
Human<span> genus are called Homo they include the past genetic tree of humanity, with Neanderthals, Denisovans, and other extinct species of hominin. I hope this helps you!</span>
4 0
3 years ago
How are Lex and the worker at the unemployment office similar?
White raven [17]
Good define unemployment as having no job teheheheh
8 0
3 years ago
Which body part is vestigial in humans?
Stels [109]

Answer:

The answer is the 2nd picture: the coccyx bone in humans.

Explanation:

Vestigial Structure:

Structures or anatomical features that do not currently serve a function is the bodily processes of a living organism. Vestiges are believed to have performed active functions in the organism's ancestors throughout its evolutionary history.

Coccyx Bone:

The coccyx or tailbone is an evolutionary remnant of our tree dwelling ancestors. Coccyx has no use in modern humans as we do not need to climb trees.

The coccyx in modern humans serves as an anchor for muscles.

5 0
3 years ago
1. What is cultural control? What are the practices done in this approach? What are the advantages and disadvantages of cultural
timama [110]

1.a.In agriculture cultural control is the practice of modifying the growing environment to reduce the prevalence of unwanted pests. Examples include changing soil pH or fertility levels, irrigation practices, amount of sunlight, temperature, or the use of beneficial animals or insects.

1.b. Cultural control is using the production or utilization methods of a commodity with a concern for insect management. Cultural control practices are usually multipurpose technical procedures that create environments that either avoid high-risk situations for infestations or develop unfavorable conditions for pests.

1.c.Simplicity and low cost are the primary advantages of cultural control tactics, and disadvantages are few as long as these tactics are compatible with a farmer's other management objectives (high yields, mechanization, etc.).

4 0
3 years ago
The following DNA fragment contains the sequence for the translation initiation codon usually used in genes: T A T A A G G C A T
Georgia [21]

Answer:

A T A T T C C G T G T A T A A G G C A T C

Explanation:

Thymine pairs with adenine

Guanine pairs with cytosine

4 0
4 years ago
Other questions:
  • In a human female reproductive system, the ______. labia minora are a pair of thick, fatty ridges that protect the entire genita
    5·1 answer
  • This is information collected by observation or experimentation. It is recorded and analyzed by scientists.
    12·2 answers
  • Outline the three steps your body’s immune system takes to fight off an infection
    10·1 answer
  • What would an orange grove farmer be most concerned about?
    10·1 answer
  • To survive<br> As the environment changes, all organisms must
    8·2 answers
  • Suppose a butterfly with 16 chromosomes is able to produce offspring. How many chromosomes would the offspring receive from each
    5·2 answers
  • What do nitrates phosphates and carbon dioxide do in ponds lakes and rivers
    5·1 answer
  • 78 points! I need help!!!!!!!!!!
    15·1 answer
  • Cell division is represented where
    6·1 answer
  • C + O2 = CO2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!