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
katen-ka-za [31]
3 years ago
12

Penetrance In a certain breed of plants, thorns are determined by the dominant allele T and thornless is determined by the reces

sive allele t. T is 60% penetrant in the heterozygote; 40% of heterozygotes will appear thornless. If you make the parental cross TT x tt; what would be the expected number of progeny for each phenotype in a population of 400 F2 plants?
Biology
1 answer:
Gelneren [198K]3 years ago
6 0

Answer:The Thorn plants will be about 300 while the thornless plants will be about 100.

Explanation:

When the parents cross

TT x tt

F1; Tt, Tt,Tt, Tt.

Tt x Tt

F2;. TT, Tt, Tt, tt..

Phenotypic ratio; 3:1.

Hence,3/4* 400=300

1/4*. 400=100

You might be interested in
The length of a vertebrate's ______ determine its ability to concentrate urine. a. axons b. synapses c. malpighian tubes d. neph
RoseWind [281]
<span>The length of a vertebrate's D. Nephrons determine its ability to concentrate urine. Nephrons are the functional units of the kidney that produce urine. </span>
8 0
3 years ago
What is the difference between Palm trees and mosses ?
maksim [4K]

Answer:

Palm trees produce flowers whiles masses do not

7 0
3 years ago
Read 2 more answers
Hemophilia is a sex–linked disorder that is caused by a defective gene on the X chromosome. What will be the pattern of inherita
olchik [2.2K]
From what I believe, 50%. The chromosome from the father can either be X or Y, so it’s a chance to carry it in the X gene if the child is a girl. If its a boy, then it has no chance of carrying the gene. Hope this helps
4 0
2 years ago
Enzymes are used in biological chemical reactions. Check all that apply.
Sliva [168]

Answer:

Enzymes are proteins that assist as natural reactants to promote up the standard of chemical responses inside of cells.

Explanation:

Enzymes are proteins that assist as natural reactants to promote up the standard of chemical responses inside of cells. Substrate(s) bind to an enzyme at the enzyme's current (or catalytic) site. Products are published, and the enzyme is reusable.

To learn more about Enzymes refer:

  • https://brainly.in/question/18041963
  • https://brainly.ph/question/5901137
6 0
3 years ago
What should the students do to model convalent bonding between two chlorine atoms?
aleksandrvk [35]
Draw a single covalent bond between the 2 chlorine atoms, and place 3 lone electron pairs surrounding each of the chlorine atoms. This chemical bond is a Nonpolar one, as both chlorines have equal electronegativities.
6 0
3 years ago
Other questions:
  • Qualitative research generally uses numbers to represent research data.
    11·1 answer
  • 2. Which organelles are involved in energy conversion? (1 point) A.)mitochondria and chloroplasts B.)mitochondria and ribosomes
    9·1 answer
  • Estrogen and testosterone are structurally related to cholesterol. Based on what you have learned about cholesterol, predict how
    11·1 answer
  • What do fats, steroids, and waxes have in common? What do fats, steroids, and waxes have in common? (a) Moderate polarity. (b) L
    9·1 answer
  • What are vessel fiber/fibber/fibre ? beams ?​
    9·2 answers
  • How do you know where the Big Dipper starts
    13·2 answers
  • How do spores help sustain the population of ferns?
    10·2 answers
  • What biome does a woodpecker and snowly owl live in
    12·2 answers
  • Which letter in Figure 1 represents meiosis? Why?
    13·1 answer
  • All sources of pollution come from human activities. please select the best answer from the choices provided t f
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!