Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 26.4, Problem 2COMQ
Summary Introduction
Introduction:
Flowers are a major part of plants, which bear the seeds and consist of the reproductive organs. These organs are surrounded by the Corolla and calyx, which are also known as petals and sepals respectively. Flowers are also called as blossom or bloom, they are small parts of plants.
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Double fertilization results in __________________________.
a.
a diploid zygote and triploid endosperm in each seed
b.
a spare sperm nucleus
c.
two diploid zygotes in every seed
d.
none of these answers is correct
e.
three diploid zygotes; one of the three will form will develop into a sporophyte embryo in a seed, one will die and the third will migrate out of the megasporangium and form a separate male plant
After double fertilization, a zygote and ________ form. a. an ovule b. endosperm c. a cotyledon d. a suspensor
1. Ovary will become the _____.
A.seed coat
B.fleshy fruit that can be eaten
C.whole seed
D.endosperm of the seed
E.plant embryo
2. If the testes fail to descend, a male is infertile because sperm cell formation is prevented by _____.
A.excessive production of estrogen
B.none of the choices
C.all of the choices
D.lack of testosterone
E.relatively high internal body temperature
3. An egg develops to an amphibian without being fertilized by an egg.
A.Isogamy
B.Sporulation
C.Parthenogenesis
D.Asexual Reproduction
E.Sexual Reproduction
Chapter 26 Solutions
Genetics: Analysis and Principles
Ch. 26.1 - Prob. 1COMQCh. 26.1 - Prob. 2COMQCh. 26.1 - Which of the following is the correct order for...Ch. 26.2 - Prob. 1COMQCh. 26.2 - Prob. 2COMQCh. 26.2 - Prob. 3COMQCh. 26.2 - Prob. 4COMQCh. 26.3 - Prob. 1COMQCh. 26.3 - Prob. 2COMQCh. 26.3 - 3. Myogenic bHLH proteins are ___________ that...
Ch. 26.4 - Prob. 1COMQCh. 26.4 - Prob. 2COMQCh. 26.5 - 1. A key event that initially determines female or...Ch. 26.5 - Prob. 2COMQCh. 26 - 1. What four types of cellular processes must...Ch. 26 - Prob. 2CONQCh. 26 - Prob. 3CONQCh. 26 - 4. Which of the following statement(s) is/are true...Ch. 26 - Discuss the morphological differences between the...Ch. 26 - Prob. 6CONQCh. 26 - Explain what a morphogen is, and describe how it...Ch. 26 - 8. What is positional information? Discuss three...Ch. 26 - Prob. 9CONQCh. 26 - Prob. 10CONQCh. 26 - 11. Describe the function of the Bicoid protein....Ch. 26 - With regard to development, what are the roles of...Ch. 26 - Discuss the role of homeotic genes in development....Ch. 26 - Describe the molecular features of the homeobox...Ch. 26 - What would you predict to be the phenotype of...Ch. 26 - Prob. 16CONQCh. 26 - If a mutation in a homeotic gene produced the...Ch. 26 - 18. Explain how loss-of-function mutations in the...Ch. 26 - What is the difference between a maternal-effect...Ch. 26 - Prob. 20CONQCh. 26 - Prob. 21CONQCh. 26 - Prob. 22CONQCh. 26 - 23. Discuss the similarities and differences...Ch. 26 - 24. What is cell differentiation? Discuss the role...Ch. 26 - Prob. 25CONQCh. 26 - What is a totipotent cell? In each of the...Ch. 26 - 27. What is a meristem? Explain the role of...Ch. 26 - Prob. 28CONQCh. 26 - Predict the phenotypic consequences of each of the...Ch. 26 - 30. Explain how alternative splicing affects sex...Ch. 26 - Prob. 1EQCh. 26 - Compare and contrast the experimental advantages...Ch. 26 - 3. What is meant by the term cell fate? What is a...Ch. 26 - 4. Explain why a cell lineage diagram is necessary...Ch. 26 - Explain the rationale behind the use of the bag of...Ch. 26 - Prob. 6EQCh. 26 - Take a look at question 2 in More Genetic TIPS...Ch. 26 - All of the homeotic genes inDrosophilahave been...Ch. 26 - Prob. 9EQCh. 26 - wo techniques commonly used to study the...Ch. 26 - Prob. 11EQCh. 26 - Prob. 12EQCh. 26 - 13. Another way to study the role of proteins...Ch. 26 - 14. Why have geneticists used reverse genetics to...Ch. 26 - Prob. 1QSDCCh. 26 - Prob. 2QSDCCh. 26 - Prob. 3QSDC
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- I. The joining of male and female reproductive cells is called?? II. It is the make reproductive part of the flower III. If stigma recieves pollen from another flower of the same species what the flower is ???arrow_forwardThe small opening in the integument(s) of the angiosperm egg sac through which the pollen tube enters is known as the _________. Select one: a. Microtubule b. Megapyle c. Venter d. Neck-ring cells e. Micropyle f. none of these choicesarrow_forwardThe stamen consists of a long stalk called the filament that supports the ________. a. stigma b. sepal c. style d. antherarrow_forward
- Seed germination is stimulated by _____; stem elongation is stimulated by ____________ Select one: a. far-red light, far-red light b. red light, far-red light c. red light, red light d. far-red light, red light e. none of the abovearrow_forwardRefer to the figure. a. What gene mutation(s) will result in the loss of production of the sepals? b. What gene mutation(s) will result in the loss of production of the petals? c. What gene mutation(s) will result in the loss of production of the stamens? d. What gene mutation(s) will result in the loss of production of the carpels?arrow_forwardChoose the statement that is true.a. All flowers are pollinated by bees.b. Apple trees are propagated by grafting because they are triploid.c. Carpels function to attract pollinators.d. A coleoptile protects the plumule of eudicot seedlings.e. The arrival of pollen on a receptive seed is called pollination.f. In plants, sperm cells are male gametes.g. Nutrients in fruits nourish new seedlings.arrow_forward
- 9. gumamela flower has an axillary inflorescencea. trueb. false10. the elevation of flower parts of squash blosoms is described as epigynya. trueb. false Thank youarrow_forwardMost gymnosperm seeds _______________. Select one: a. have attached wings to aid in dispersal b. grow as groups in thick pouches inside of woody cones c. have very little viability d. possess no seed coat e. none of the above answers f. have triploid endosperm, the product of double fertilizationarrow_forwardAn important difference between plant development and animal development is that______ . a. only plant development depends on hormones b. plants continue to develop throughout their lifetime c. animals, but not plants, have a circulatory systemarrow_forward
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