Sexual Reproduction in Flowering Plants Questions and Answers

One of the most common echinoderms during the Paleozoic were Crinoids which lived directly on the seafloor i e epifaunal Usually fossils only preserve parts of Crinoid bodies From the different body parts of Pentrimites the calyx or head the stalk and the base reconstruct in a drawing the complete Crinoid Also draw a top view of the calyx identifying the mark with five fold symmetry Crinoids still exist today but are not very abundant use the figure in the book provided as a guide for your reconstruction but don t just copy use the fossil specimen themselves in the reconstruction

1

Which of the following is the result of double fertilization OTwo diploid zygotes A diploid zygoe and a triploid endosperm A diploid zygote and a haploid endosperm Two haploid zygotes

Identify parts A and B in the figure below Select one OA ovules B ovary A stigma B style A ovary B ovules OA ovules B stomata OA carpels B ovary Time le A Next pag

What is polygenic inheritance occurs when one gene influences many characteristics a single phenotypic character results from the additive effects of two or more genes two dominant alleles affect the phenotype

Which of these is a fragment Ryan usually walks back from school every day Those apple trees in the distance are mine The new neighbors with their belongings I had a wonderful time reading stories to children today

Drag each label to the correct location on the diagram Labels Drop Zones Hydrogen bond Oxygen atom An organic molecule Hydrogen atom E 11 I Reset All Image Description 8

O how shall summer s honey breath hold out Against the wreckful siege of battering days When rocks impregnable are not so stout Nor gates of steel so strong but time decays O fearful meditation where alack Shall Time s best jewel from Time s chest lie hid Or what strong hand can hold his swift foot back Or who his spoil of beauty can forbid O none unless this miracle have might That in black ink my love may still shine bright Read the concluding couplet in the sonnet What does black ink symbolize Miracle O Beauty 8 9 679 10 12 5 13 11 14

3 1 Lipids carbohydrates and DNA all exist in human cells as long molecular chains Which of the following describes how DNA differs from lipids and carbohydrates O Only DNA contains genetic information O Only DNA is needed to create new cells Only DNA is found in the cytoplasm O Only DNA has carbon atoms

1 1 What are elements 5 and 6 Percent by Mass 80 70 50 40 30 20 10 Common Elements in the Human Body 1 3 Element O carbon and oxygen Osodium and iron O zinc and sulfur O chlorine and phosphorus

Which of the following genetic effects does inbreeding have compared to a population where mating is random no inbreeding Choose all that apply In answering this question do not take into account possible effects of selection mutation migration or genetic drift Inbreeding increases the frequency of recessive alleles over time Inbreeding increases the frequency of individuals showing recessive phenotypes Inbreeding increases the frequency of individuals who are homozygous by descent for any given gene or haplotype Inbreeding decreases the frequency of recessive alleles over time

Which of the following is expressed in the poem Wasteland by poet T S Eliot Negative aspects of postwar life in the world with no moral and spiritual values Positive aspects of postwar life in the world with enhanced moral and spiritual values O Current situation of the world and the plans for improving fast The happenings in the war along with the plans to overcome the bad past

1 Draw the synapse and identify the main parts of a pre synaptic cleft and a post synaptic 5 marks cleft include vesicles neurotransmitters receptor proteins or channels

In which of the following pairs of structures do you find counter current exchange O the renal artery and renal vein O the ureters and the urethra er V Othe proximal tubules and the distal tubules the vasa recta and the loops of Henle the collecting duct and the distal tubules

the internal capsule substantia nigra red nucleus reticular formation of the dopamine releasing neurons of Question 18 2 points 4Listen Select ALL of the following that are true regarding strokes Many who survive a stroke experience paraplegia in which they are paralyzed on one side of their body 0 They occur when the blood supply to an area of the brain is blocked and brain ells die from ischemia They may be due to blockage of a blood vessel ischemic stroke or rupture of a blood vessel hemorrhagic stroke Some patients recover part of their lost functions because the surviving neurons

Most animals have Oasexual haploid Oasexual diploid sexual harle reproduction with the adult stage being

Use the picture above as an example of four possible fur color types in this breed of dog from left to right black solid brown piebald black piebald brown solid A breeder of the dogs makes the following observations of possible outcomes of crosses black solid x black solid can produce all the phenotypes brown solid x brown solid can produce brown solid or brown piebald black piebald x black piebald can produce black piebald or brown piebald brown piebald x brown piebald can produce brown piebald Select all of the following that are true of this genetic scenario In a litter of puppies with all four color types the probability of producing piebald is 1 4 In a litter of puppies with all four color types the probability of producing a black piebald is 3 16 Brown is dominant to black Piebald is recessive to solid There are two genes with two alleles described here

2 2 Question 41 Listen Which group of fungi include species that are referred to as Ascomycota Chytrids O Basidiomycota OZygomycota

Questi Listen The advantages of the reduced gametophytes in seed plan OAI protection from ultraviolet radiation gain of nutrients from its own photosynthesis and protection from drying out OB protection from ultraviolet radiation gain of nutrients from the sporophyte and protection from drying out OC development of the seed protection of the spores from ultraviolet radiation and drying out and gain D of nutrients from the sporophyte

flowering plant meiosis occurs in the into a female gametophyte Ofruit seed stamen anther ovary Question 11 1 point Listen F J producing a spore that develops characteristics is unique to the seed

680 Which structures are highlighted microvilli Ob Onuclei O goblet cells O cilia Pigs

A Gregor Mendel choice of garden pea plants to study worked out well as they only have easy to identify expressed traits 23 B 2 C 7

A C C C C C C Step 2 C C C C C C After step 2 the next aerobic step is which will lead to the release of as waste Glycolysis B Alcoholic fermentation The Citric Acid Cycle

If you double the time an enzyme has to react the amount of product will A increase more than double B be less with more time C not change significantly D double as well

Listen Assuming equal spore production rates what is bryophyte with both asexual and sexual reproduction versus one with reproduction OA Species with both types of reproduction have higher rates of genetic diversity than species with only sexual reproduction OB Species with both types of reproduction are less evolutionarily advanced than species with only sexual reproduction C Species with both types of reproduction have higher population growth rates than species with only sexual reproduction DI Species with both types of reproduction occur primarily in dry environments

Oseed Opollen grain Ob bud ovary anther estion 3 1 point Listen

gen can be seen below Estrogen is a substance that promotes the development of reproductive organs in female animals Estrogen is secreted by the ovary and placenta of female animals The receptors for estrogen are found in cells in the uterus vagina breast pelvis skin bladder urethra bones and brain Estrogen works mainly by binding to the G protein coupled estrogen re ceptor GPER When estrogen binds to GPER it activates a signal transduction pathway that regulates gene transcription in the nucleus by turning certain genes on or off estrogen Select all that apply A AKT B GPER expression C P13K MAPK A signal transduction pathway that is activated by estrogen MAPK pathway activation growth proliferation cell cycle progression adenylate cyclase CAMP IV TE VCREB Which of the following is an internal factor that could result in estrogen being unable to regulate gene expression PKA GPER expression A mutation causes DNA to methylate and the GPER gene to become unavailable for transcription Exposure to a pesticide blocks the binding of CAMP to PKA A medicine contains a molecule that works to block the activation of the MAPK pathway

ow do Tlowers vary from polluted areas compared to the non polluted areas in Botanical Brooklyn Garden Provide data

When pollen comes in contact with the female organ of a seed plant specific enzymes trigger the generative cell to form and the tube cell to form O egg cell sperm cells nuclei Oprothallial cells sperm cells nuclei Omicrospores pollination tube sperm cells nuclei

The flower part that produces microspores and ultimately microgametophytes is the anther of the stamen Oflower receptacle ovary of the pistil ovule of the ovuliferous scale

All seed plants have a megasporangium containing only 1 megasporocyte and after meiosis of the megasporocyte only 1 of the resulting megaspores survives to build the megagametophyte plant inside the megasporangium A True B False

The ploidy of the endosperm tissue is O OB diploid A part is haploid and part is diploid C triploid D haploid

Los Tamarindos 156 5 If a scientist were to cross the V1 Genotype AA with V2 Genotype Aa Which genotype s would result A A AA a Aa A Aa

7 How does meiosis increase genetic diversity in populations 8 Why does phenotype not always reveal genotypo

nett P PP F1 pp cross fertilization Pp self fertilization 3 1 Ratio p p P P P P P p F1 genera F2 genera A punnett square can

The half reaction shown below is a an NAD H 2e NADH Oxidation Reduction reaction

List the events of glucose catabolism during cellular respiration in the correct order Include the inputs and outputs of each portion of the process Felic

2 What are the advantages of the pollen grain over flagellated sperm 3 Which part of the pine life cycle represents the sporophyte

108 21 Question 12 Diffusion always causes

In Petunias immature styles express a high level of RNase a nuclease that catalyzes the degradation of RNA What type of SI Self Incompatibility would this affect and how O 1 It will enhance gametophytic Sl O2 It will stop gametophytic Sl 3 It will enhance sporophytic SI 4 It will have no effect O 5 5 It will stop sporophytic Sl

A basic difference between self pollination and cross pollination is 1 whether insects are involved in pollination 2 the method of pollen delivery 3 whether the pollen germinated 4 where the pollen came from 5 how often pollination occurs

The root hairs develop in the zone of elongation 1 True 2 False

Before You Read What kinds of organisms reproduce by making exact copies of the parent organism Give three or four examples on the lines below Create a Quiz After you have read this section create a five question quiz based on what you have learned After you have written the questions be sure to answer them Then share them with your classmates Type of asexual reproduction binary fission budding fragmentation spore formation egetative reproduction What is asexual reproduction Asexual reproduction is the formation of a new individual that has the same genetic information as its parent The individual is a clone or an exact copy of its parent Asexual reproduction occurs in one celled organisms such as bacteria and in multicellular organisms such as plants What types of asexual reproduction are there There are several types of asexual reproduction as shown in the table below Definition the splitting of a single parent cell into two equal parts that have the same coples of genetic material a group of rapidly dividing cells develops on an organism and breaks away to become a new organism 5 2 Summary a small piece of an organism breaks away from it and develops into a new individual parent organism produces spores single cells that can develop into new individuals by repeated mitosis special cells usually in the stems and roots of plants divide repeatedly to form structures that develop into a plant that is identical to the parent Examples of organisms that use this form of reproduction some kinds of bacteria amoeba some simple multicellular organisms such as hydras and sponges one celled yeasts some plants such as mosses and liverworts some animals such as some sea stars and corals common in fungi some plants and algae very common in most kinds of plants

The Red Queen Hypothesis suggests and seeks to explain why _______ is a useful and successful strategy to diversify a population which is under perpetual sele Conjugation Sexual Reproduction Binary Fission Reproduction via Fragmentation

People around the world today can enjoy fruits such as oranges, grapes, and watermelon without having to pick out the seeds. How can farmers best ensure that grocery stores are well supplied with these seedless fruits? a. by encouraging bees to only cross-pollinate seedless plants b. by selectively breeding seedless fruits c. by allowing fruit-bearing plants to naturally reproduce d. by removing all the seeds from the fruits after they are harvested

Once a cell has entered senescence, it will A. no longer replicate. B. move to G2. C. divide uncontrollably. D. divide immediately.

Thrips are insects that feed on rose pollen. Scientists noted that the thrips population increased in the spring and decreased dramatically during the summer. The researchers hypothesized that food abundance was the limiting factor for the population. Which of the following types of data would be most useful for the scientists to collect at regular intervals on a designated test plot of rose plants? (A) Amount of sunlight (hours/day) (B) Mean temperature (°C) (C) Density of rose pollen produced (g/m²) (D) Amount of pollen produced by each flower (g/flower)

Select the incorrect statement w.r.t. typical female gametophyte of flowering plants. The functional megaspore divides mitotically Six of the eight nuclei are separately surrounded by cell walls in embryo sac Each nuclear division is immediately followed by cell wall formation Polar nuclei are situated below the egg apparatus in the large central cell

A cross was performed in C. elegans, following the segregation of three linked genes, where the genetic map was A-----16cM-----B----9cM----C. The cross was performed between a parent with genotype aBc/aBc and a parent with genotype AbC/AbC. The F1 progeny were then testcrossed. Assuming an interference value of 24%, what proportion of the progeny is expected to be ABC/abc? A) 0.15% B) 0.3% C) 0.55% D) 1.1%

The formation of a tough wall of sporopellenin around the male gametophyte leads to the production of what end product? O Ovules O Eggs O Anthers O Stamens O Pollen