What would be the number of chromosomes of  the  aleurone  cells  of  a  plant  with  42 chromosomes in its root tip cells?a) 42b) 63c) 84d) 21

1 Answer

Answer :

b) 63

Related questions

Description : Cells of aleurone layer function for

Last Answer : Cells of aleurone layer function for – hydrolyzing the food material of seeds

Description : Structural characteristics of meristematic cells near root tip. -Biology

Last Answer : answer:

Description : Aleurone layer takes part in

Last Answer : Aleurone layer takes part in A. Protection of delicate embryo B. Enzyme synthesis C. Transfer of ... . Transfer of food from cotyledous to embryo tips

Description : Filiform apparatus is characteristic feature of (a) aleurone cell (b) synergids (c) generative cell (d) nucellar embryo.

Last Answer : (b) synergids

Description : The aleurone layer in maize grain is specially rich in (a) proteins (b) starch (c) lipids (d) auxins.

Last Answer : (a) proteins

Description : The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons? (a) Cotyledon (b) Endosperm (c) Aleurone layer (d) Plumule

Last Answer : (a) Cotyledon

Description : Which one of the following statements is correct? (a) The seed in grasses is not endospermic. (b) Mango is a parthenocarpic fruit. (c) A proteinaceous aleurone layer is present in maize grain. (d) A sterile pistil is called a staminode.

Last Answer : (c) A proteinaceous aleurone layer is present in maize grain.

Description : The ____ is the large central portion of the kernel and contains most of the starch. a. aleurone c. endosperm b. bran d. germ

Last Answer : c. endosperm

Description : In man, the normal number of chromosomes is - (1) 42 (2) 44 (3) 46 (4) 48

Last Answer : (3) 46 Explanation: Chromosomes are the structures that hold our genes. Genes are the individual instructions that tell our bodies how to develop and function; they govern our physical and medical ... the egg), and the other set is inherited from the biological father (from the sperm).

Description : In man, the normal number of chromosomes is (1) 42 (2) 44 (3) 46 (4) 48

Last Answer : 46

Description : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50'. What number is missing? -Riddles

Last Answer : 22

Description : Which one of the following is decimal value of a signed binary number 1101010, if it is in 2's complement form? (A) -42 (B) - 22 (C) -21 (D) -106

Last Answer : (B) - 22

Description : The sum of three numbers is 210. If the ratio between the first and second number be 2:3 and that between the second and third be 4:5, then the difference between the first and third number? a) 21 b) 35 c) 42 d) 56 e) None of these

Last Answer : Answer: C a: b = 2:3 and b:c = 4:5 a:b:c = 8:12:15 Difference between first and third number = (7/35)*210 = 42

Description : Potometer works on the principle of (a) osmotic pressure (b) amount of water absorbed equals the amount transpired (c) root pressure (d) potential difference between the tip of the tube and that of the plant.

Last Answer : (b) amount of water absorbed equals the amount transpired

Description : Nondisjunction of a chromosome results in which of the following diagnoses? a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two ... genetic condition that may occur in a single family member as a result of spontaneous mutation.

Last Answer : a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two copies of a particular chromosome (nondisjunction) Down syndrome results from three number 21 chromosomes.

Description : What is the greatest common factor of 21 28 42?

Last Answer : The GCF is 7.

Description : A 19 year-old female is referred following a visit to the dentist where marked erosion of her teeth was noted. She was entirely asymptomatic and her only medication was the oral contraceptive pill ... ) Bulimia nervosa 2) Conn's syndrome 3) Laxative abuse 4) Pregnancy 5) Primary hypoparathyroidism

Last Answer : Answers-5 This patient has tooth erosion associated with hypokalaemic metabolic alkalosis and hypocalcaemia. This suggests a diagnosis of hypoparathyroidism. Conn's is unlikely in this age group, is ... raised alkaline phosphatase would not be expected. Early pregnancy would not fit this picture.

Description : The ball bearing is subjected to a radial load of 4000 N. Expected life for 90% bearings is 9000 hr and the shaft is rot (a) 42.21 kN (b) 37.29 kN (c) 26.33 kN (d) 35.22 kN

Last Answer : (b) 37.29 kN

Description : Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2 , is (A) 17.0 cm (B) 25.5 cm (C) 34.0 cm (D) 42.5 cm

Last Answer : Answer: Option B

Description : In the hexaploid wheat, the haploid (n) and basic (x) numbers of chromosomes are (a) n = 21 and x = 21 (b) n = 21 and x = 14 (c) n = 21 and x = 7 (d) n = 7 and x = 21.

Last Answer : (c) n = 21 and x = 7

Description : A woman with 47 chromosomes due to three copies of chromosome 21 is characterised by (a) superfemaleness (b) triploidy (c) Turner’s syndrome (d) Down’s syndrome.

Last Answer : (d) Down’s syndrome.

Description : .Down’s syndrome in humans is due to (a) three ‘X’ chromosomes (b) three copies of chromosome 21 (c) monosomy (d) two ‘Y’ chromosomes.

Last Answer : b) three copies of chromosome 21

Description : How many chromosomes per cell does a Down's Syndrome (trisomy 21) victim have?

Last Answer : ANSWER: 47

Description : A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of ... cells. This would result in (a) somaclonal variation (b) polyteny (c) aneuploidy (d) polyploidy.

Last Answer : (d) polyploidy.

Description : Which one of the following pairs of plant structures has haploid number of chromosomes? (a) Nucellus and antipodal cells (b) Egg nucleus and secondary nucleus (c) Megaspore mother cell and antipodal cells (d) Egg cell and antipodal cells

Last Answer : d) Egg cell and antipodal cells

Description : What cells main job is to sort and package proteins and other substances in a plant cell. chloroplasts chromosomes nucleus Golgi Submit?

Last Answer : organelle

Description : What if the tip of the root swells with food ?

Last Answer : When the tip of the root is swollen by storing food, it is called kandal.

Description : Which is essential for the growth of root tip? (a) Zn (b) Fe (c) Ca (d) Mn

Last Answer : (c) Ca

Description : The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early morning is (a) transpiration (b) root pressure (c) imbibition (d) plasmolysis.

Last Answer : b) root pressure

Description : Best material for the study of mitosis in laboratory is (a) anther (b) root tip (c) leaf tip (d) ovary

Last Answer : b) root tip

Description : Is square root of 42 rational or irrational?

Last Answer : The square root of 42 is an irrational number

Description : If you are provided with root-tips of onion in your class and are asked to count the chromosomes, which of the following stages can you most conveniently look into? (a) Metaphase (b) Telophase (c) Anaphase (d) Prophase

Last Answer : (a) Metaphase

Description : Assertion : Meiosis is also known as reduction division. Reason : Meiosis reduces the number of chromosomes in daughter cells.

Last Answer : Assertion : Meiosis is also known as reduction division. Reason : Meiosis reduces the number of ... D. If both Assertion & Reason are false.

Description : If the number of bivalents are 8 in metaphase - I, what shall be the number of chromosomes in daughter cells after meiosis -I and meiosis -II respecti

Last Answer : If the number of bivalents are 8 in metaphase - I, what shall be the number of chromosomes in daughter cells after ... 4 and 4 C. 8 and 8 D. 16 and 8

Description : In a species of corn the diploid number of chromosomes is 20. what would be the number of chromosomes found in each of the normal egg cells produced by this species?

Last Answer : Need answer

Description : How does the number of chromosomes in each of the daughter cells produced in mitosis compared to the number of chromosomes in the original cell?

Last Answer : In which phase of plant cell mitosis is the most time spent? Inwhich phase of animal cell mitosis?

Description : In normal human sex cells contain the number of chromosomes?

Last Answer : I'm guessing you mean germ cells (oocyte and sperm). Each onehas 23 chromosomes (haploid), so when they fuse they make a fullcell (46 chromosomes-diplod).

Description : Gametes have a. homologous chromosomes. b. twice the number of chromosomes found in body cells. c. two sets of chromosomes. d. one allele for each gene.

Last Answer : d. one allele for each gene.

Description : Name the type of cell division in which the two resulting cells carry only half the original number of chromosomes. 

Last Answer : ANSWER: MEIOSIS (pron: my-o-sis)

Description : How many times divisions will occur in an isolated tip cell to form 128 cells ?

Last Answer : How many times divisions will occur in an isolated tip cell to form 128 cells ? A. 128 B. 127 C. 32 D. 7

Description : If a naked mole rat has 27 chromosomes in its sex cellshow many chromosomes would it have in its body cells?

Last Answer : Need answer

Description : A stage in cell division is shown in the figure. Select the answer which gives correct identification of the stage with its characteristics. (a) Cytokinesis Cell plate formed, mitochondria ... reforms. (d) Late anaphase Chromosomes move away from equatorial plate, Golgi complex not present.

Last Answer : (c) Telophase Nuclear envelope reforms,Golgi complex reforms.

Description : An animal has 80 chromosomes in its gametes, how many chromosomes would you expect to find in this animal's brain cells? (A) 120 (B) 240 (C) 40 (D) 160

Last Answer : (D) 160

Description : 21 weeks pregnant, panic disorder, and needing 2 root canals...

Last Answer : answer:1. breathe now. 2. Talk to your dentist. Modern medicine has come a long way, and it's completely possible to do magical things with local anaesthesia. Honestly, if it's that bad I'd ... would hurt your kid a lot less than a jaw infection, a course of antibiotics, and emergency dental surgery

Description : Find the values of k for which the equations x^2 – kx – 21 = 0 and x^2 – 3kx + 35 = 0 will have a common root? -Maths 9th

Last Answer : Let the common root be α ⟹α2−kα−21=0......(1) α2−3kα+35=0........(2) (1)−(2)⟹2kα=56⟹α=k28​Substituting α=k28​ in (1) (k28​)2−28−21=0 ⟹k=±4

Description : What is the exact value for the expression the square root of 189 minus the square root of 21 plus the square root of 84 Simplify if possible.?

Last Answer : Need answer

Description : In Wheat Crown root initiation stage comes —- days after sowing a. 21 b. 11 c. 31 d. 41

Last Answer : a. 21

Description : Which type of germ cells contain 23 chromosomes

Last Answer : Which type of germ cells contain 23 chromosomes A. Spermatogonia B. Primary spermatocytes C. Secondary spermatocytes D. None of above

Description : $ A chromosomes with equal sized arms is called isobrachial. ! Barr bodies are present in the cells of human females.

Last Answer : $ A chromosomes with equal sized arms is called isobrachial. ! Barr bodies are present in the cells of human ... wrong D. If both As and R are wrong.

Description : Why is it important that sex cells have half the numbers as chromosomes as body as body cells?

Last Answer : This happens so the genetic material from both parents combinesto make new set.